Mike, in all fairness perhaps it is because you are looking to make a profit, or at least with a mind towards the business end holding out to the public. Hiring out labor puts the kibash on these things.
There are guys who love projects for it's own sake. That guy who just loves to use his tools, has great affection for high end work, who finds great pride in knowing the inside and out of another toy; he is less inclined to total the costs. I've done it in muscle cars, fine woodworking, or wood sailboats.
The only real 'hobbyist' I found in aviation was a retired FAA inspector. An A&P/IA, he had a list of project planes. For the restoration he had the owner sell half share to him. Basically he had carte blanche to complete the restoration to his high level of quality, with only minor consideration to time to completion.