I don't think that plan will work for a plastic bonnet?There is an article in this months profi magazine on a case tractor on this very subject
Nick...
Main problem is the paint they used was shyte, & they didn't put enough on. We have an MX that has been kept polished & it's almost worn through now, a respray is on the cards at some stage in the very near future.
The silver wheels were worse, every rub of a sponge brought paint off, I think the way they painted the wheels was to hold the spraygun & drive the tractor past it...