What type of spray equipment do you have access to if any? Prep is the key to any paint job. Degrease and clean first. Sand with 400-600 grit paper. For the little nooks and crannys that you cannot sand by hand try using red Scotch-Brite pads. If you do not have spray equipment you can use rattle cans. If you have a compressor, pick up a HF spray gun or a small cupped gun at a place like TSC. Best bet would be to use an automotive type primer and paint, but you can get good results with rattle can paint. After you prime, sand the primer using 600 grit either wet or dry. Then use a good cleaner to pre-clean before painting. Again, if you have a paint shop around, get a wax and grease remover to clean. You can also use alcohol in a pinch. Pick up a couple of tack cloths and wipe down right before spraying the paint using caution to use the tack cloth lightly and not press it down as it will leave a residue.