I have the bipole (RS42 basically) but my room is small and I won't be going to 7 channels. So IMO for the way your room will be you would be better off with regular (monopole?) bookshelf speakers for the side surrounds and the rear channels.
As for subs, the PB13 Ultra is a great sub, but there are more powerful subs for less money out there, check Reaction Audio, PSA, HSU and Rythmik.
You might want to wire for Atmos as well while you're under construction.
Klipsch RF-62II, RC-500, RS-400, SVS PC12+,
Def Tech SC8000
Roku Ultra, Apple TV, Sharp 70" Quattron