If you wanted to grow mmj but had no place to do it. And someone had a place but no skill to do it.
So how much of the final product would you ask for in return for the services?
Cause itll be wasting your time gas and resources.
What percentage of product would be reasonable?
6o-40? For the person with the spot?
"Reasonable" is whatever makes the two of you happy, honestly.
Don't forget there is not only startup costs of equipment, but also design and construction of the garden. Who is paying for THAT?
Maintaining a garden isn't trivial; you're talking work at least a few times a week, watering, sexing, pruning, harvest, drying.
If this is a legal grow, no risk, no issue.
If this is not a legal grow, I'd be disinclined to participate because legal risk to you of driving to the location several times a week, plus having someone else involved is high. Who is this other person and how well do you trust them? Are they capable of keeping their mouth shut about a grow?
How much you ask depends on how much your time is worth, and also how much work is involved.
Personally, if I agreed at all, I don't think I'd do it for less than 50-50, but I'd have to know EXACTLY what was involved in terms of size, scale, etc.