After you have a million in the ground and a half million in equpment and do all those things one should to one's employees (including health insurance for a family) you will be considered a thief by better than half the people on this board when you charge what it takes to support such a concept, probably including yourself.
I'd pick a different trade! In a few years no one with money will be paying to have their car repaired and the ones without money sure don't care about mahogany.
Bosch Master, ASE Master, L1
33 years MB technician