I am a young mechanic who really enjoys working on tractors. I have put a new clutch in a farmall m and super c and done a few brake jobs as well. I also have a farmall 706 gas tractor that I have done quite a bit of work on as well. Recently someone offered to sell me an IH 806 diesel for a reasonable price, however it needs an overhaul. I have always wanted to learn how to work on engines and do overhauls like this, but, I am concerned that it might be too big of job for my first time. What did you guys start out on, and should I be looking at something closer to a super c, or a John Deere B? Thanks(by the way I live on a farm and have been around tractors my whole life)?