Basing mine of past and current experience of businesses I have purchased and currently work with. This business is not, nor will it ever be "cookie cutter" so unless you came up through the ranks it will be much tougher on non-mechanic owners. Just because xrac is doing fine really means nothing in regards to who will struggle more in this business. What you're talking about is delegating and having the right people doing the "business" side of things. Like I said, this is just from my personal experience and I've had a lot of it when it comes to dealing with failing shops. There are hundreds of better investments for non mechanics then auto repair shops, and so much less of a struggle.