Whats the deal with humps?

[jetfixr]

I have a 70 c10 that I converted from 4 on the floor to a 700r4, now I have a huge gaping hole in the floor where the stick used to go. I am not sure if it is considered a hi hump or a low hump. What I would like to do is get a hump out of an automatic truck and put it into mine, but all the automatics I look at the hump is not a bolt in peice like mine is, it seems the hump is an integral part of the cab. I did have a hump cut out of a truck that was headed to the crusher but I am really not sure how I would go about installing it. I am worried that a stock low hump carpet kit wont fit properly if I don't get the height just right.