For the pure sake of it really, and so people may know what they need to be looking for with pictures, below are nearly all I need for a full 4-wheel brake upgrade.
All parts bar front discs/pads, handbrake cable and one steering knuckle/hub carrier which is soaking in rust remover. Hub carriers and full set of bolts were a little expensive but darn hard to find on their own, £75 delivered. Got plenty of wire wool and some Hammerite smooth black paint for the calipers
Front 4-stud 280mm discs, just need discs/pads now. £25 from a member:
4-stud rear disc setup, just needing handbrake cable and a little copper piping, £92 delivered from a member, fully rebuilt calipers and discs/pads 6000 miles ago:
If anyone has done this before locally, and is up for doing mine, offers welcome If nothing else, could do with a pipe bender for the copper, though I think I'm right in saying it isn't needed? Do I need anything else to fit the new copper pipe to the rear?