I sprayed a couple of bike this summer. You need min. 2 cans auto primer, 2 cans paint and 2 cans lacquer per frame to do it well (I did anyway) plus the time and effort prepping the frame, dustsheets to make a booth... with the cost and hassle I think I'd just go for a cheap but decent powdercoat now as the finish is never as good as you hope and it chips really easy. That said, some folks swear by Hammerite as a cheap alternative and I've never used it.
I sprayed a couple of bike this summer. You need min. 2 cans auto primer, 2 cans paint and 2 cans lacquer per frame to do it well (I did anyway) plus the time and effort prepping the frame, dustsheets to make a booth... with the cost and hassle I think I'd just go for a cheap but decent powdercoat now as the finish is never as good as you hope and it chips really easy. That said, some folks swear by Hammerite as a cheap alternative and I've never used it.