I have been looking for a used tractor to clear some land and pull stumps and haul logs, weekend warrior gentlemen farmer type work, nothing serious. I want to keep it under $5k so I am well aware that whatever I get is gonna be "mechanic special". In my search I have run across a few 420c and similiar crawlers coming in closer to $3k. My grandfather had one and I remember messing around on it decades ago and it was fun, my question for this community is how much of a money pit is a 70 year old crawler? I am not looking to restore one, just keep it in working order. I am a fairly competent shade tree mechanic so the work doesn't worry me its parts availability and troubleshooting, the crawler drive train would be completely new to me. I am not to worried about the engine and hydraulics unless there is something different crawlers are doing there.