I have not had time to read all the advise here, but I have some anyway:
DON'T DO IT
I know most of you won't agree, but from what I read from Luke, a hobby is something you don't want to get real involved in right now. I didn't finish college and now I make a decent living, but I have to work like a dog in the heat (or cold). I would suggest you put college first in your life (unless your a God fearing person, then you know what goes first) and spent a little time hanging out with people that can afford these toys. I looked for anything to do when I supposed to study. My point is, money should not be your main concern right now. It's time. You can eat up a lot of time with these things, and that time would be best spent finishing college, getting a career, making real money and buying a tank. Wait a minute, that's my dream, you stick with the deuce.
Joe of Blythewood
College drop out
Heavy equipment operator
Master plumber
Certified welder
Inventor
Journeyman pipefitter
Commercial truck driver
Boy scout volunteer
Military vehicle collector
Ham radio operator
Father, etc.