Which K member?

Ok new here but trying to figure out if I should find a stock small block K member or buy a new tubular one. I have a 73 /6 car and am converting to a Gen III hemi. I want to make sure I inly purchase the right stuff the first time so any help would be greatly appreciated.

When you guys talk about "hemi" you need to be specific........early hemis, 426 era, or gen III?

He DID specify...