I think the RF-83's will definitely fit the bill. 100db/w, 29hz, taller and deeper than the others(more cabinet volume) and I like the aluminum woofers.
I'd prefer the KLF-30s over the CF-4s by a small margin, but I guess it's just a matter of whatever comes up first. I don't think I'd be happy with CF-3s, and I'm kinda iffy about going from P17s to KLF-20s too.
Probably just continue my hunt for one of the three flagships.