You’re on the right track. All of the PS gear should definitely go in. I think the Denon won’t cause much concern for a regen outlet. Most AVRs are quite efficient and use class D amps. After that, I’d go Apple TV and then Blu-ray. The TV is probably a no go for me because it might pull too much current. We want that extra overhead for the gear. Also, TT PS don’t always like to be plugged into a regen. Specially if you’re using the MW setting which I HIGHLY suggest you use.
This is just a start and I hope is at least a bit helpful. My suggestions might change depending on the amount you use each source. If you use the DVR way more than the Apple, I’d probably plug that in there.
Congrats on the P3, you’re going to love it in your system!