Best and Cheap seldom go together.
Sort of like Good, Fast, Cheap. Pick two.
As for keeping costs low - well if you start
with the money you intend to pay yourself
that should do it - just barely.
Expecting a How To Make A Lot Of Money
Doing Woodworking - In Your Spare Time
For Free book, and probably for less than
$5, seems a bit naive (sp?).
Good luck though.