Cheers jwhat, even though I'm most of the way through now, it confirms my guesses of how things should be done were correct. Beginners luck!
Thought I'd post some pictures of the project so far...
Bought B5 RS4 carriers from "Docurley". They were covered in bright red caliper paint; this had to go. So I handed them over to my mate Andy who using some nasty chemical dips and some sand blasting got them looking good as new, down to the bare metal. To prevent rust he suggested I primed them until I decided how I was going to finish them properly. So they now look like this...
I bought a set of EBC redstuff pads and then went and picked up the complete RS4 front brake setup from "stoakseya4". It sat in my living room looking like this...
Dust shields + extra carriers that I wasn't expecting...
Epic discs!...
Removed guide pins and started cleaning caliper number one in my state-of-the-art, custom made brake service station...
And on to the second one...
Had a fight with the rubber guide pin bushings. I had hoped to take these alive but two died in the chaos of battle. I don't actually think it is possible to remove these without cutting them out as they're held in place by toothed plastic sections that appear to be impossible to remove without destroying them. I plan on removing these plastic sections, and replacing the bushes with ones the same as used on the opposite side where these plastic parts are not required.
I removed the pistons by blasting them with compressed air, gave everything the once over with a cloth and here's where I'm at now...
Next job is to get the calipers and carriers powder coated (inspiration from jwhat's link).
Quite a fun little project so far.
...and if you were wondering why there's hardly any fish in my brothers aquarium, it's because this f**ker eats them all!!...
...and he's the "small" one.