Mike,
Good show!
I think your MR 2000 should be sufficient for your whole system, even if you go to a bigger amp. Use it as indicated.
Meaning, plug the CDP into one of the digitally filtered oulets (the other one can be used just fine for an analog device -- try your preamp PS on that one, it could benefit from some digital noise filtering)
Plug the amp into the amp outlet on the PLS.
If you have noise or hum on the system after connecting it this way, try lifting the AC plug grounds (using cheater plugs) of all components but the preamp. Do the amp first, then (only if necessary) the CDP. Keep the PLC grounded of course.
It's nice to be able to plug a power amp right into the wall, if it can be on its own circuit, etc. But in your (electrical) situation, I'd advise you to run everything through the PLC. It has plenty of capacity for your equipment requirements not to be restricting dynamics. If you feel dynamics are being restricted by the amp being run thru the PLC, it's easy enough to find out by plugging the amp into the unused receptacle (still with the ground pin lifted.)