when you can buy a custom steel frame for $600, isn't that a cheaper alternative? $2500 for the class, your time, etc. is not exactly a way to save money. If you look around at custom builders, steel if you want to save money, there are plenty that offer a very fair price, and then you don't have to do it yourself. Not that it wouldn't be fun to do, build your own frame, but if it isn't quite right, who you gonna blame!