Whereas I don't have a flux five I do have a flux drive, and I have to say in my personal experience playing through a Rectoverb 25 and Roadster combo the pedal can sound quite "Voxy" at lower levels. It has a midrange honk to it that seems to vanish as volume of the amp increases. I don't use...
The primary driving force for me buying my PRS Tremonti was how terrible the 2015 models were. I knew I wanted a single cut guitar to replace my aging les paul studio but every one I looked at was utter garbage.
Guitars don't really appreciate until a significant amount of time has passed from their manufacture date, and even then its getting rare for a "modern" guitar to appreciate in value.
The pedal power 2 has a 120v outlet on it, so I would assume you would just come in the pedal power, and then plug the other power supply into the supplied 120v socket.
You will have quite some trouble taming a reverb pedal if it is not in your effects loop. I personally run my reverbs/delays/chorus effects in my loop, and run my boosts/ODs etc in front of the amp. AKA the 4 cable method.