i read your post about how people get hooked.  i got hooked about one mounth ago when i newly discoverd my grampas old oliver 70 row crops.  there are two of them, one is a 1939 (my favorite) and a 1944 which the engine is looked up on from sitting.  he bought them in the 1970s sometime just to play around with.  when the tires rotted out on them he decided to parked them were they have all ways sat.  im only 16 but would love to get one or both of them running they are complete but some little things are  missing like there is no alternater on the 39 and the shifter is broke but i could just get some parts thats not hard(i wish tires werent so much money though)  then two years ago my grampa passed away so i dont know much about the tractors the internet is wounderfull in finding information about the row crops.