I've just purchased my first DA Polisher and rather than go all guns blazing on my nice new car I want a scrap panel to practice on. I also want to practice my stone chip and scratch repair. Now ideally I would like a metal panel in the same colour, Diamond White. I'm in the Birmingham area, can anyone suggest a scrappy, local or otherwise that may be able to supply such a panel? There is a door in Wolverhampton, but they want £75 for it, which is too rich if I'm just going to destroy it. TIA.