#1
So, know of any that arent ridiculously expensive?
I could buy a used champion 600 for $100, so... yeah something obviously of better quality but not too expensive
something I can crank at night
#2
You would be surprised how loud 5Ws can get. Cranking mine whenever my parents are home isn't really an option, but they are easy to get nice and queit, I just use my OCD or TubeScreamer when I need quiet.

You could try modding a Champ or Valve Jr.