Been meaning to get around to doing the calipers for a while and when someone on here (sorry forgot your name ..) posted up the results a few months ago I also bought some Halfords caliper paint and some flat head brushes off Ebay and had a go. Last one painted today. Putting some Gtechniq C5 on the wheels too. From a distance they look ok but close up not so lol.
Four coats later
Will put up some more when car back together.