I would not spray bomb a vehicle unless I really didn't care or didn't have any other option. If you are not real picky about color, here is what I would do before I decided to rattle can it.
Clean it really well removing any loose paint. Get a wax and grease remover that is not solvent based because that will soften the paint. Get a water based one. We used to wipe down with laquer thinner in the old days but a dedicated wax and grease remover would be better. Do this with nitrile gloves so you don't put oils back on by touching it. You have to get any fingerprints, wax, dirt, oil etc. off the surface for the paint to stick. Go get a gallon of rustoleum acid etch primer, gallon of TSC implement paint in the color you choose and get 2 cans of their thinner and 1 can of their hardener. Head over to horrible freight and pick up a purple gun and some filters. Thin the primer the same ratio as the TSC primer calls for. I say use the rustoleum because I have had better luck with it than the TSC gallon. The TSC gallon stuff just does not want to dry for some reason. Mix the TSC stuff per the directions. I have had good luck over catalyzing by 50% but I don't know what the long term benefit/detriment of that would be. I have also use the TSC catalyst in Rustoleum truck and implement paint. It seems to work but I can't confirm or endorse that as a better alternative.
Final result would be that you will have a paint job for around $200 in materials that would be more durable than a rattle can because it is catalyzed. Wait a couple months and wax it. Keep it waxed and it probably won't fade too bad. The stuff shoots nice and if you take your time, you can make a pretty good looking job of it. I would pick a lighter color. The matte black I put on my frame chalked up a little bit sitting out over a years time with no protection but it's still solid.
There was a guy on here that did a dually in red and crèam two tone and it looked really good. Don't know how well it's holding up but it looked really good once he buffed it out.
Those are my thoughts.