Those ramps look brand new !
thanks strangeways.
I repainted the flaps, first i used etch primer then i painted them with engine enamel and baked them in the oven for an hour. this makes the paint really stick.
and of course i used my rivet press to re rivet the flaps on. the cheapest i can get the rivets for is 25c each, but if i buy them in Aus they are 50c each. when you compare the price of these rivets to a pop rivet its quite expensive.