Only downside is, I'm using the car regularly, so not got the time to do all the wheels at once, so its one at a time, the side you see is done, the other isn't, so I look stupid driving around with odd wheels. Will be worth it in the long run though.
And JRP, considered your idea, but I'm not that good at spraying, and only paint shop near me is halfords, I don't trust them to colour match!