Okay - here goes:
I might be moving and have the ability to design a new room (attached to the garage) entirely for brewing. Pretend for the moment that $$ is not a limiting factor. My FIL is the builder, so I basically have carte blanche - he can do basically whatever I tell him I want to do.
My brewing area will be about 15 x 15.
I have the ability to have it LP hard plumbed.
The first thing I have to decide is whether the system should be stationed inside. My FIL is promoting this since I could brew inside where its cooler (a/c). We could get a commercial grade hood vent system, but this would also probably require me to switch to a brewsculpture setup, such as this: http://morebeer.com/search/103473//2
I don't think I could continue on my homemade gravity fed stands and banjo burner inside - just can't see that working.
Could forgo that all and continue just the way I'm doing (rolling my carts out into the driveway), but then I'm not taking advantage of building the 'ultimate brewhouse'.
Will probably tack a lot more questions on here as they come up.