OK, changed a few things and looking for more advice. I'm replacing the SA-15 with an SA-ADP and moving the SA-35s into the ADP-190s position, and replacing the SA-35s up front with SA-LCR-3s. Going to get an amp, well, thinking of 2 amps, XPA-3 by Emotiva. I plan on running fronts and the single SA-ADP on one and the center and two surrounds on the other amp. I should be good then. Still looking for any advice, comments, input, etc.
I'd love to have another sub, but not sure the wife would like it up in the other corner. If I could only figure out a place to kind of center the one I have.