I'm hoping you/or anybody else, doesn't expect him to be doing fret work etc, etc on your guitars for that one payment.I found a guy on Craigslist that does lifetime setups for just the first payment of $35. That has been great for me. I'm afraid that I'll damage the neck or something when adjusting the truss rod. He slso put strap buttons for me on my archtop. Peace of mind for me since this guy is a retired guitar tech.
Maybe you could find someone through a similar app? I trust Guitar Center or places like that. There is a mom and pop store that I have used in the past but their priced really went up.