So I found at least two sources for the original drawbar but I think I am leaning towards a three point one.
Either way by looking at the original drawbars, I see that there are 5 holes total. There is one for the implement hookup at one end, and two smaller holes near the implement hole to add on the clevis bracket. At the other end, there is the hole for the pin under the tractor, but then there is a 5th hole similar in size to the tractor pin hole diameter but it is more towards the center of the drawbar. I think it is just for drawbar length adjustment, mainly for using pull type pto implements, but i am not positive.....so What is this 5th mystery hole for?? I'm just wondering and thanks for all the info!!