Yeah, that's some pricey paint work for sure.
As for doing it with spray cans - I'll tell you what a professional painter friend with over 30 years experience told me when I asked him that EXACT question - don't waste your time and money. He said that for what materials cost the finished product is just too different and not worth it. Of course you can do it, but it'll probably look like you did it with rattle cans. I can tell you a few different tips though... If you're a handy guy then buying a decent gun/compressor can be had for really reasonable prices nowadays and if you're careful with your prep than shooting your own parts can be relatively inexpensive. Now don't get me wrong, there is a mile-wide gap between you and I shooting parts at home and a pro painter with years of experience, but I know several people who bought a harbor freight HVLP (high volume low pressure) gun and shot their own stuff in their backyards. The 2 most important parts are PREP and a clean space to shoot in. Prep is, hands down, the most important part of painting. Bad prep = bad paint. As far as a clean space, this is something many can accomplish themselves with a tarp or some clear plastic hung from the ceiling in a garage. My friend did an entire Jeep body inside an old military tent.
Once you have all that sorted out it's usually very easy to find a good paint shop locally where you can get excellent advice from the counter guys who normally have years of knowledge and experience to share. They can advise you on paint, clear, reducer, activator, or whatever other materials you may need. If, by chance, you have trouble finding a good place locally (which would be unlikely unless you're in a REALLY small town) there are a ton of online paint places. Eastwood is a huge company for this, but they're very far from being the only one.
Other ideas you might enjoy (given that I've seen your build thread) are "painting" with plasti-dip and/or bed liner. While I can't claim that this makes sense to me, it is becoming extremely popular for both bikes and cars. The plasti-dip is easy because if you don't like how it comes out you can just peel it off and redo it. Hell, too many bugs? Peel it off, respray it! The bed liner is more permanent, but there is a lot of info on doing this stuff available online. Because it's gaining popularity a google search returns a lot of good, recent, and relevant results.
If all else fails, remember, for $10 you can take a chance at a custom job AND help out a brother in need...http://tech.bareasschoppers.com/general ... hn-colter/