He doesn't want to DIY to save money. He enjoys the work.
This is the kind of DIYer that is OK to work with, IMO. You can make money on this relationship.
This relationship will last years, if the terms are clear up front. He will need future help, repeatedly.
TB A+ Partner Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense. -Buddha