contact http://www.uti.edu/Motorcycle/tabid/59/Default.aspx and select financing, plus youll need room and board etc but they can help you with pretty good numbers.
Might as well borrow alot because as mechanic you'll never make much. Trust me on this one, if you want to fix bikes as a hobby go for it, but, if you are looking for a career do your self a favor and look ELSEWHERE .