leap of faith
Did you try?
If you own a home, you can take out a loan against your house. I know a number of land developers that became millionaires by starting out just this way.
A small commercial site that can host several buisinesses, such as a dounut shop, a dry cleaners and your dojo ( and maybe a couple of apartments upstairs), will immediately begin paying you rent, which can then be used to pay off the loan.
Just a thought.
(Please excuse my enthusiasm — just doing a little brain storming.)