It pays to keep in mind that generally in talking about speakers, the more power a speaker and cabinet can handle, the less efficient they are. Less efficiency means you need more power to have the same volume. Greater efficency means less power is needed.
That being said, I would suggest looking to a cabinet that doesn't handle 400 or more watts. Any Sunn 2X15 cabinet with JBL's or Altecs would be great. Or a 1X15 and a 2X10 or 12 with some fairly efficient speakers, again, JBL's or Altecs. There is a reason why these speakers are looked on as the gold standard; they sound great and are very effiecent, well worth reconing....even 30 plus year old speakers.
But as we have all said time and again, try it out, you may find just the sound you dreamed of. And have fun doing it.