You do not want to put your monitors, 626R's or otherwise, on top of your RPTV. The two main reasons are: 1. you will not have them separated far enough apart to get a good stereo image, and 2. you want to have the midrange/tweeter drivers at about ear level to get proper tone and detail.
So putting them on top of you RPTV will only work if you are standing and really close to the set. For normal seated position you will probably need about 24" speaker stands for the 626R's. The footprint for these speakers is 10" wide by 13" deep. I have a pair on either side of my HT system in a 14 X 24 room and they work very well. Mine are part of a 7.1 HT system, but even just using them in stereo mode they work well.
You might want to consider a pair of the new RM-30C's, which have a footprint of 9" wide X 19" deep, not including the base. These have three ribbon midrange panels and better bass.
I cannot comment on the amp, since my experience is only with multiple channel amps.