Thanks to all for your input... seemed like a pretty straight forward topic that I simply was unable to either find or search correctly for!
I'm running an older NAD 304 2 35W, 120Wpeak for the time being. I picked up another GFA-5300 off Audiogon immediately after that should arrive in a day or two. Eventually I'll make it up to 'PVHF', likely take them both to be looked over and bridged.
So far, so good with the NAD. It's also in very good shape, just serviced & recapped.