Those look like the same ComoDrill motor/planetary that I have in my B50 ADT, B4206 & slew motor in my Vario; very dependable motor gear reduction combo.
Kampshoff has a hydraulic kit for the Carson track loader, I thought they had a drive set too, but I can't find it; might be a special request item.
Well have fun with it when you get it back, and avoid turning turning sharp in the dirt to keep the earth & debris out of the track links.
Thanx for the well wishes, hopefully not too much longer I'm on a crutch.