They're also expensive as hell - that's just the one I dream about when I assemble the home theatre in my head. Looks like what you are actually assembling is pretty cool and if it's fun for you that's great!
I'll be curious to hear how you like the transition to 7.1. I have the capacity...
How about the widescreen Stuart CineCurve with movable side masking to show movies the way they're supposed to be- where Wider is Bigger and letterbox is what your mail comes in...