Well gang, I made it back out to the woods today and took some pictures of that strange (to me) Jeep.
It looks like you guys were right about the engine (big surprise!), it does look like it says Jeep Tornado 230 on the cam cover. The carburetor was missing and I not only didn't see a distributor I never found the plugs!
It would need a lot of work, but it's a cool old truck, someone ought to save it ... even putting a Chebby motor in it would be better than the thing just rotting away in the woods.
The pictures are here, along with a few others I took this weekend.