It's why I was thinking of having him out as my gardening companion (especially since my other dogs don't want to be outside for a second longer than they have to). Would be kind of fun to get a little wagon and teach him to pull things around.
Definitely do-able! I get mine to help me pull my children in their wagon & in the winter on their sled. You just need a good harness and time to teach them.
My boy spends pretty much 22 hours outside. I let him come in as much as he wants but it’s uaually only 1/2 hour here or there then he wants back out. There are the odd nights he’ll come in all night but very seldom.