I feel bad for the guy who kicked in $50k and works at the shop. Will he ever see his money again?
As far as Marcus goes, looks like he lost some time and travel money, but unlike some other episodes gone bust, at least he didn't purchase new machinery, renovate, etc. Guess he's learned to wait before writing checks.
The owner? He seems more comfortable running a small garage type of business. Unfortunately he's bleeding money and not likely to attract an investor (at least one that watches the show).
Win or lose, lessons to be learned for the viewers.