Comprehensive Z wobble fix?

Howdy,

I'm having trouble nailing down which Z wobble compensation system to buy the parts for/print...
Wondering if there's a single system and list of parts that the more experienced users here could point me towards?
Perhaps also a list of Aussie part Suppliers if they're out there?

Safe to say I don't have much of an idea of where to look for parts outside of fleabay.
I'm running an SD-2, if it's of any relevance.

Cheers!

This is a crowd funding thing that I'm running: http://www.gofundme.com/bvi140 It's for pretty selfish reasons