This all really reads in an uncomfortable way and I would never risk investing into somebody by guessing if whatever I need done, as a business, will be interesting enough for this person to put genuine effort into.

I feel like OP needs hobbies to get the fun/interesting itch scratched and then go back to being a "code monkey" like the rest of us, doing "boring" stuff to pay the bills.

I've been there myself before and the most valuable lesson I've learned is that motivation != discipline. Motivation comes and goes and if you base your productivity solely on that you will burn out. Being disciplined though allows to get the "boring" out of the way first, leaving lots of time to explore other interests.