I'm not as bad of a pessimist as the rest of these guys are. But,,,
That being said ; There is absolutely no way you can tow it home until you get it out of the spot it is "stuck in" after all these years. Then you will have to inspect and replace a lot of things. Tires, Wheel bearings, and such.
After that you will need to inspect it some more to make sure it is in good enough shape to keep.
For free, If it were me, I might go check it out. But !! I doubt that it is worth the trouble. I would not promise them anything and I would not move it until I serviced the running gear,,, at the very least.
If you are looking for advice on the internet then I really doubt that it is worth the trouble to you.
Have a nice day.