I would get a ASE certified mechanic on board for the demanding work, as well as a hourly gofer to do detailing, deliveries, etc. I would help out on the floor also but my focus would be running the business. I have to get a sense for how many good mechanics are out there looking for work.

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma