Epson 8350 & Wilsonart Laminate - White or Grey?

I've been reading everything I can on Laminate Screen solutions and seem to be headed towards the Wilsonart Designer White - but wanted to do a double check with the experts.

The room will be light controlled (basement - 2 small windows but can block out light if needed). Looking at something in the 5' x 9' size for the screen. Throw distance is roughly 14' or so.

Is the Designer White the optimal choice for my setup or should I be looking at one of the Greys? I haven't had the opportunity to try it out on anything yet as the wall is currently a sage green color. Definitely looking for a no fuss solution and was headed towards MDF and spraying one of the paint mixes - but sourcing anything in the 5' x 9' range for MDF has been tough...then I stumbled on the Laminate threads...sounds very promising.

Last question: I saw a few threads (and sample photos) of arc'd screen frames. Not sure I even need anything like that as the test pattern seems to be perfectly rectangular. Am I missing something though? Is this more for presenting a better viewing angle?

Thanks for any assistance!

Building a frame shouldn't be an issue. I was just trying to avoid the paint aspect. Its been tough sourcing a large enough sheet of MDF anyways...so it's a somewhat subjective/relative assessment on my part ;-)

So given the specific projector I noted - where does the 8350 fall as far as being a "brighter" projector? I'm thought I read somewhere that you can a adjust the light output and/or there's an auto iris feature. Any feedback on how this particular projector would perform with the Laminate screen?

I didn't come across much in the way of negative feedback on this specific laminate. I'm sure there's a lot more to read but am hoping others with this same setup will be able to provide feedback.