??Questions about Original 4 speed shifters??

[Down south truckin]

Ok I've been hankering to build a 71-72 4x4 4 speed one ton for a while now and have been rounding up parts lately and was wondering if any body knew how many different shifters came on these trucks and which one fits which I just bought 3 different ones from Teeitup and he said they all came off 67-72 I know I've seen 4 speed humps with the shifter hole way up front and the 4x4 ones were kinda in the middle and was wondering if one of the shifters would have been longer to compensate for this? I have a 1/2 ton 4x4 4 speed truck but I'm pretty sure it has a later model shifter in it because it has 2 bends like the one on the right in the picture.any knowledge shared would be greatly appreciated thanks Mike