In contrast to the advice above, I would say do not sand it, you'll end up changing the contours of the body. Use Nitromors to strip the old paint, (I've been using it for years without any problems) then clean up the remnants with steel wool and thinners. Finally a rub all over with naptha [lighter fluid], and only then should you sand, or possibly scr@pe with a cabinet scr@per, if necessary. This will work for car paint but for some of the poly finishes, heat is the only way. Use a matt white undercoat and sand this smooth with wet and dry before putting on colour. It's a good idea to put clear over the colour coat too. And remember - the better the finish you get on the bare wood, the better the end result, don't hope that the paint will fill dings and scratches.
