Need help deciding on Rotel Amp for 5.2 sys

If , as you insinuate , this is just for H/T I would not get caught up in the quality of the amp . Just go with decent amplification at the lowest price possible . I have the Rotel 1095 5 channel amp at 200 watts per channel . I find it more than sufficient for H/T use . It replaced an Integra receiver . While the Integra was ok the Rotel was better and had a lot more power . I found the rear channel speakers , which are often the furthest away , took considerably more power from the Integra to come up to equal the fronts . Remember , receiver wattage is not equal to straight amp wattage . It is not even close !
If , however , you plan to use this equipment for 2 channel listening also , then kindly ignore this reply and take the good advise above .

Good luck

Just my personal experience, in my HT system, Denon AVR/all B&W/HSU sub, I preferred the LCR at full range, I just thought it sounded better. YMMV. Of course now, I have absconded with my sub to the two-channel room in the basement, don't even have a sub in the HT and don't really miss it all that much. Most nights when we're watching movies, the kids are asleep upstairs, and the wife plays volume games with me throughout the movie...

If I read right that you are running an 8" in ceiling speaker for center channel, more power to that speaker is not going to do much in that room size. I fear you are at quite a distance from a down firing speaker as well. Your setup may work better at high volumes without the center. Consider that and possibly adding a nice 2ch amp for the mains which are a low 87db sensitive.