Motor mounts are easy, hydraulic pump/plumbing is easy, radiator/fan is easy.
Clearances are tricky. I have to find a half inch. The motor is 21" and the wall to the belt pulley is 20.5". Last I checked motors weren't very pliable, nor bobcat frames. So I may have to get creative.
The funny thing about this is it's a hose to the fuel and a pulley. No clutches, they're in the chain cases. Belt alignment is really the only hurdle I need to figure out. And I can't really even start on that before I get the engine in for a test fit, which means mounts come first.
If I run out of projects, I think I would immediately die of boredom. You might like my kubota cab and power steering threads. But as time goes on it seems i'm getting more ambitious. And I don't like paying people to do something I can do myself. And I'm learning more stuff.