53corvette

As long as there is no plastic parts already installed, I would simply go to my hardware/lumberyard/home improvement center and get a quart of paint stripper and a couple of very cheap 1" paint brushes.  Then (suitably protected of course - rubber gloves, resporator and eye protection), I'd simply apply a heavy coat of stripper.  After 1/2 hr or so the paint should be loose - wipe it off with old rags, wash in warm water and if necessary, apply a second coats to those areas where the paint didn't release.  When stripped, lightly sand w/600 wet/dry sand paper, wash again and paint when dry.

That sounds like some solid advice to me, but I would add a couple of things: get a metal primer (tamiya makes one, it dries clear) or some kind of metal-friendly sealer and cover the entire body with that as soon as you can after stripping and cleaning. I've never dealt with dicast repainting (too scared, honestly) , but I've heard that the metal used has a tendancy to oxidize very quickly, causing paint adhesion problems. If you use a sealer or suitable metal primer, you should be Ok though.