I'm still new here but from all the tuts that I have been reading the next step would be to resin/ fiberglass as you have said followed by sanding and body filler work. And as far as the paints go me personally I would use an automotive paint. Any reputable paint shop in your area will be able to match the paint that you are looking for. They probably have a factory color that will get you close if not exactly where you want to be. You will need a decent spray gun and compressor along with misc. supplies but I think that you will be much happier with the finish and the durability of the paint versus spray can or something to that effect.
But that is just my opinion. Hope it helps!