i'll start with the brakes, i had the brembo decals from the previous owner, they had tried to refurb but the brakes had reacted, not a good sign for me haha
first action was to clean them with preclen, which started to melt the paint, so i left that, and hand sanded them and red scotched, and masked them up
then added the paint,
allowed to fry and added the decal,
finally i clear coated them
prep wise, use a red scotch brite using pre kleen/degreaser to remove any last bits of junk, or use some 800 grit paper, as for colour you can go on with red 2k, or as i did in base, add decals then 2k clear,
hth
jake