You didn't mention if the engine was stuck or free, this could matter a lot. The transmission could have a bunch of water in it if the boot on the shift lever isn't in good condition. This could by why the shift lever is stuck, rust. Or there could be pressure on the drive train. It sounds like a parts tractor, but on the other hand, parts are around and it is rare, only about 5000 made. It comes down to do you like it. You can buy one running for less than it would cost you to fix this one probably, but that isn't always the point. Making it a tractor again is part of it, do you want a fun project? Or do you just want a tractor. I have been working for 3 or more years on my WD, just got it running, still have a lot to do, it includes parts from one tractor, one 2/3 tractor and one 1/2 tractor, some new parts, a lot of time on my part, and more money than I would have spent on a running WD. But I am enjoying myself, will have a tractor that I brought back from the dead, and that is why I am doing it instead of just buying a tractor. Own a model B with my brother that we use for the work around here, snowplowing, gathering wood, etc. so I don't NEED it. I would say go for it, but unless the engine is free I wouldn't want to pay $200, maybe 100 max. More like 50. But then I spent more than that on my parts tractor, had stuff I needed, so what you pay is what it is worth to you at the time. Good luck.