There are some more experienced members here that will chime in when it comes to wiring, pots and capacitors.
The Crawlers can do everything from blues to hardrock. So can the Divers, although they have more of a metal-vibe to them. For me the Crawlers sound like hotrodded Mules.
Nailbombs are to my ears more 90's-metal, very loud, less middy then Crawlers and Divers, aggressive and pronounced topend.
I think you're more after Crawler or Divers. Both are good, but different and the choice is a matter of taste. Divers sound a bit more contemporary then Crawlers, which still have this hotvintage PAF-vibe to them.