$8K is more than ample, if you shop wisely and avoid the usual scams and snake oil products like exotic cables and power conditioners with boutique shops and BB Magnolia salesmen love to pitch.
If your usage is mainly HT/TV not 2 channel music, you do NOT need big hulking towers with 8" woofers. The center does 60-80% of the HT output and 99% of the dialogue, but no speaker salesman will ever tell you that since they make a lot more commission selling you big hulking towers than modest sized bookshelf speakers. So, if you get towers because you simply have a strong VISUAL preference for them, I'd just get something with 5.25" or 6.5" woofers ... in the case of Klipsch that would be the RP-5000F or RP-6000F.
If you are worried about speakers being fatiguing because you are sensitive to strong treble and/or have a highly reflective room with hard floors and lots of windows, both Klipsch and B&W would be poor choices. I'd look at brands you probably haven't heard of but which would be more likely to be a safer acoustical match: Wharfedale, Emotiva, Chane, etc.
Subs: buy from an internet direct subwoofer specialist company like Hsu, Rythmik, SVS, or PSA. If the 26 x 22" room is fully enclosed not part of an open plan layout then a pair of $600 subs like SVS PB1000 Pro should be fine. Do NOT pick a sub only because it's small and pretty with a bloated pricetag, you will regret it.
Since you are doing a PJ, I would suggest doing an AT (acoustically transparent) screen so that you can put 3 identical speakers behind it in vertical alignment...ideally with a false wall, or simply hanging in front of the speakers.
