It's been awhile, but so much has happened on this thing and I figured I'd update you guys on this.
So first off, I've completely stripped down the tractor except for the undercarriage, which in my opinion is in decent shape. I'm replacing steering clutches, brakes, a couple broken gears in the transmission, main clutch, etc etc etc. Basically any wear parts. I've had no real problems sourcing stuff. General Gear in Idaho has basically every part I've needed, and the prices really aren't that bad at all. I've probably spent 2-3K there, but I'll have a brand new drive train (once I put it back together).
The real problem with this tractor was the engine, it was completely toasted. It had ran with no oil, and it had sat and collected water for ??? years. I just today went and visited Phillips Tractor in Gaston Oregon, and unfortunately it is shutting down. The original owner has passed on, and his son is just not making money selling stuff. No one is buying the old tractor stuff anymore. Good news for me though, he sold me a working engine for $500. I took a few pics of his leftover machines and such. Sad that it's going away, but it's a bygone era I suppose. The father son team have probably touched every older machine in this area where I live, and there is a 99% chance that they did the conversion from pony to 12V start on my machine.
Anyways, I just wanted to say that this has been a fun project and I can't wait to get it moving again so I can tear up some trails on my property. I've met a lot of great people and learned a lot of things. I don't regret buying this machine at all!