Questions back at you.
- What do you plan to do with the contractor? It looks like you have the basic room and it is what it is. You will need some form of light control, an equipment rack, a projector mount, and a plan to run wiring. All of that is pretty simple for DIY and will save a fortune.
- I have your receiver in my family room. Biggest issue was a lack of inputs. Ran out ages ago. These days, you are looking at BluRay player, some sort of media streamer (Roku), cable box, TIVO, connection to PC, etc. I also have an HD-DVD player hooked up as well as laserdisk. I solve it for now in the family room with an HDMI switch into one of the inputs, but went with a better, later model receiver for the HT.
- Blue is pretty non-descriptive. My theater is a dark indigo on the ceiling and screen wall and 2 shades lighter on the side walls.
- I have movie posters hanging in frames with glass. Yeah, it probably affects the acoustics, but it works for us. See attached photo.
- The Polks are not really high efficiency and the room may overwhelm them. Try it and see.
- My screen is 120" 16:9. Screen aspect ratios are oftewn controlled by room dimensions. Mine is width limited, so 16:9 is best. Try both 16:9 and 2.35:1 by projecting on wall. You will also need to play with seating distance. I found that 11' to eyeballs worked well with 120", but others complain that is too close.
- Do you plan on a second row? If so, you need to work out riser height and sight lines.
- Blinds will not cut it in daytime, or if you have lights shining in at night. Go with a covering that seals tight at the edges. I recommend either an insert (again see picture) or tight fitting curtains with magnetic rubber sewn into the seams.
- I use an Epson 8350 for a projector. It was great bang for the buck and is very adaptable in terms of brightness, lens shift and zoom range. Projector choice is somewhat a religious experience though, and there are a lot of good choices out there.
Note, this picture was taken 2 years ago, and the theater has progressed. I just haven't taken a newer picture.
Best of luck in your project