@wig Thank you for the suggestions. I did some research on the TJ and Emissions tubes on the power side. I am also new to tube rolling and always worry about sacrificing one thing for another. EG - bass for high frequency extension. But once the 508 is completely broken in including tubes, then I’ll start exploring some of those tube options. Also thanks for the fuse suggestions.
As for room treatments, I did actually build twelve 2x4 foot hanging sound treatment panels for my HT room, made an amazing difference in that room. Unfortunately in the new house, the front of the listening room will actually be large sliding glass doors. So there will be no treatment allowed there. Lol. The floors are hardwood but we will most likely be using rugs there. Shall be interesting.