as far as humbuckers, you're gonna have to figure that out alone.
It depends on what kind of output you're looking for, I have a Slash Alnico II and a Super Distortion (hot output pickups) and they work great for tone for me particularly because I play with boosted mids and highs. So if you want a hot output HB I'd recommend those for sure.
as for a bridge, Mustang bridges tend to work well and are fairly cheap and easy to come by (AllParts, ebay etc)
I've tried a bunch of them on my Jaguar, and I'd recommend a Mastery or a Tune-O-Matic (suprisingly I've never had that problem with that bridge, not sure why.) or if you just want to do things really basic and cheap just fix it with some tape 😁
GAFFA TAPE FIXES ALL SINS 😉