You can get chemical paint stripper, strip the sucker down (you'll also need sand paper and possibly a drill with a sanding attachment to get it all off)
then a can of primer (at least!) to give it a good base coat
then 2-4 cans of colour
then a can of clearcoat
plenty of space, plenty of light (to see how even your coats are) plenty of patience and somewhere dust/flys aren't going to get at it while it drys
I'm sure others will disagree, but I found it a royal pain in the ass :P
You can get chemical paint stripper, strip the sucker down (you'll also need sand paper and possibly a drill with a sanding attachment to get it all off)
then a can of primer (at least!) to give it a good base coat
then 2-4 cans of colour
then a can of clearcoat
plenty of space, plenty of light (to see how even your coats are) plenty of patience and somewhere dust/flys aren't going to get at it while it drys
I'm sure others will disagree, but I found it a royal pain in the ass :P
(all this only applys to rattle-canning it)