I've bought probably a dozen Rottendog and haven't had any horror stories on their WPC CPUs. You hear things about Rottendog... but for their CPU boards I'd buy again without hesitation.
I've always considered a Pin-Tek board a step up from Rottendog. I certainly have been happy with all the other Pin-Tek boards I've bought, but I've never bought a Pin-Tek CPU replacement.
I would say that the Dumbass boards are absolutely top of the market amazing, and worthy of your A-class better-than-original restoration. He's doing jaw dropping good work.
Personally, I'd go Rottendog in your situation.