If the Panny is as bright as my older Epson's (8500Ub, 8350) no worries on a screen that big. I run a 153" and it looks great. You may have to change the bulb a bit sooner than a person running a 100" screen but, for me anyhow, worth the cost for that cinematic experience! Bulb quality control more of a factor than screen size. I had bulbs go at 800 hours and others go at 2000.
If I were to do it again, I would go 2.35:1 though.
Good luck and enjoy!