Nice job on the model. It definitely pays off to overplan
these things. I have a running model of my theater room and am constantly using it to design upgrades and changes.
Have you ensured that the 2030 will work with your setup - I could be mistaken but I don't think it has lens shift and only has minimal zoom? Using any kind of keystone correction will lessen image quality.
Here are my thoughts on the rest of your questions:
-In a permanent theater room like this, my preference is for fixed, largely due to the fact that they are typically cheaper and simple to install. I think pulldown screens are best suited in instances where someone wants a second screen for a certain purpose, or is setting up a multipurpose area where the screen good be viewed by some as unsightly (blasphemy to any home theater enthusiast of course!), or just wants the cool effect of hitting a button and having the screen drop down!
-As for type of fabric, with a ceiling mounted unit as high as you currently have it to avoid any head collisions and a throw distance, I would say that high gain screens are likely out of consideration. You won't get as much benefit of the gain and could be left with all of the tradeoffs including some hotspotting and some visible texturing. I would go with a white 1.0 gain screen as a result. This is a personal preference though, there are some marginal gain options (1.3 for eg.) that could work well for you too. Grey may be the preference of some with the pj you have identified. Acoustically transparent is another option and this would allow you to throw in the biggest screen your room will allow. I have not tried out acoustically transparent screens because of some of the tradeoffs with image quality which may be very marginal on the better acoustically transparent screens. You'd just have to build a false wall to enclose all your speakers, and thrown your huge screen over top. You should still be at a seating distance where perforations of most of the mid to high end acoustically transparent screens will not be visible, unless you have eagle vision. I have seen many on here rave about the audio coming from where it is supposed to, the screen, rather than from poorly positioned speakers to accommodate the screen (as I have in my room!).
-I like the location that you have your screen. I would not put the screen near the door, which I assume is where you have the guy standing. I would not go with a wide orientation either as this may start to limit your pj choices with the screen sizes you are interested in given the limited throw distance. It is a more viable option to me though than the screen being anywhere near the door! As I said, I like where you have it... this is obviously a personal preference though. Get your pj, throw it on a shelf, project on the wall, and trying out some of these options pre-screen purchase is also something to consider.
-As for screens to look into, this is a tough one because not too many have had the pleasure of seeing a whole bunch of different screens and materials, particularly in a side by side comparison, and will therefore recommend the screen that they own... and that is exactly what I am going to do! If you can stretch your budget a little, check out eastporters.ca and look into the elunevision reference line of screens. You can also check out screens like the dalite da-mat or hdpro. If these are out of your budget, there are tons of people who are extremely happy with their Jamestown screens. There's lots of options out there. Here
is some recommended reading. Keep in mind that if you choose your screen right, it will last you years. As a result of this, many will suggest spending a little more on the screen up front and then letting your pj catch up as you may replace them every 1 to 2 years (or sooner!). I have purchased from a dealer in MN before and he may have some good screen options for you too. Send me a pm if you are interested.
A few other notes:
-I think your seating distance to 120" screen size ratio is fine. THX
might have you sit a touch closer, but these things are ultimately personal preference. As I stated previously, most will tell you to get your pj first, throw the image against the wall for about a month and mess around with different size options, and find the one that is most comfortable for you given your constraints. Likely the only way you are going bigger with the screen oriented the way you have it is if you go acoustically transparent or if you are willing to use in wall speakers or something and put them underneath the screen (this is what I have done, which any audiophile would not condone!) although in your case, you may be limited then by height. There are also some small footprint floor standing speakers out there that could buy you some space. Keep in mind, as I'm sure you have, that your speakers can definitely extend into your screen border, and even slightly into your screen area (as long as you check the angles and use velvet!).
-I suggest doing a search on avs for 'shadow box', and implementing one in your room (unless you can just black velvet your whole room!). Basically a shadow box is building a box around your screen that you cover in black velvet or another material that is a poor reflector of light. It will help limit light scatter and reflections back to your screen, and will improve black levels on mixed scenes and increase the overall pop of your image. To implement one in your space, I would cover that bulkhead in black velvet, cover the screen wall in velvet, and cover the side walls in velvet out to the same distance that your bulkhead goes, and build a stage out the same distance that your bulkhead goes and cover it in velvet too. I would then cover those speakers in velvet. You may want to velvet more of your room also - everyone's appetite for these things is different! Check out this
thread for more information if you haven't already.
-I would stick with a 16:9 aspect ratio screen given all the gaming you do.
Anyway, hope that helps. Good luck and enjoy your setup!