I have a 100 that started life as a 70. I bought it as a roller in late 2008 and put a 10hp in it out of a wheel horse that was junked many years ago. Repainted it to look like a CaseIH and added an 82 series steering wheel and tractor tires all around.
My 107 came from a friend hat I used to work with. I thought about this one for a while and then ended up trading some work for it besides a little money as cash was tight at the time. I just couldn't let it slide past me though as it was in his family since new and he is a stickler for maintenance on stuff. It has since become my main tractor and I couldn't be without it. This pic is from about 2007, it has since received tri rib tires on the front.
I also have a 73 that I restored back in 2003 after it sat for a few years torn apart and left in a corner. I bought it and another tractor from a fellow pretty cheap and after selling the other I more than broke even on the deal. It's mostly a trailer queen and doesn't really see any work.
Besides these 3 my dad and I have about 15 others at the farm. One is a 782D that he was asked to have put in the cub cadet calendar a few years ago.