I need to sort out a couple of patches of rust both on the lower half of the drivers door. One area is about 5 cm in diameter and the other about
2 cm. It appears to be rusting from the outside rather than emanating from within the inside of the door. I've been quoted £200 plus another £50 for the paint (ordinary nonmetallic) for treating the rust and to respray the bottom half of the door. Does this quote seem reasonable ?