ok, so I've now de-rusted the GT primed and sprayed it. When I did my other GT I bought a can of orange spray from Halfords for like 6 quid. Huge can but I just about managed one coat as it ran out and I didn't even paint the whole frame just the ass-end. With this one I bought a can of spray from poundland for a quid (funny that) and I've given it about 8 coats!!! this this just goes on and on, nice even coverage, no runs and all for a quid.