It’s difficult this, I feel for you.
B&O is fairly standard as a power module as mentioned, but some people use Hypex as a power module, and that may be something worth looking into, the tone is also slightly different.
The amp world you will get a myriad of choices Depending on what you want, but also people will tell you what THEY like and that may not be right for you.
If you like the Tone Hammer sound you could get the TH pedal from Aguilar relatively cheaply second hand and then get a relatively clean power amp to allow it to shine through.
Straight power amps like crown and QSC can give you this, or get something like a Peavy mini max or mini mega which is cheap second hand and should give you what you need to project the pedal.
If you like a bit of drive, things like the Tech21 amp range may tickle your fancy.
Hope your search goes well