me too
you want a 2wd diff as it has 5 stud pattern (same as ford 5 on 114.3)
any lsd is good
lots of ratios available
lockers lsd's air lockers available
axle tube is only slightly larger than 1200(use hilux U bolts)
you will need hilux drive shaft for rear yoke
what is a good ratio?
how tall is your tire?
does your gearbox have overdrive?
what do you want to do with the car?
what rpm do you want to cruise at?
use the centre you get with the diff and drive it for a while youll know which way you want to go