The BC 50 is not on the same level as the true hand wired versions.
The Black Cat is built the way an AC30
should be built after 45 years
My Hot Cat 100R Custom Shop delivers everything I would expect from
a fine custom hand wired 4 EL34 Marshall, blended with the jangle and chime of a Vox AC100.
Due to the massive high quality transformers all Bad Cats are HEAVY!
My Hot Cat 100R head weighs 69 pounds on it's own and 97
pounds in the flight case.
This may be a benefit for a studio looking to buy clean used,
because many combos end up being sold, not because of tone
or reliability, but due to weight issues.
The only place Bad Cat skimps a bit is on stock speakers
and Ruby Tubes.
The speakers are V-30's with custom doping, so you can certainly
upgrade to far better drivers.
It is also important to replace preamp tubes with the best
glass you can afford. In EU, NOS Mullards or similar quality.
Your choice of amp totally depends on the kinds of tones
you have in mind.