I'm looking to install PS on my 77. Have reviewed several options, but leaning towards an OEM 79-pump and a minitruck box. I have no AC or air pump. Just the alternator on passenger side. The 2F engine block number (2F 789281) I believe to to be from 1983, and I don't know what year head is or if that matters. Would appreciate if any of the experts on Mud can tell me if what I have in the photo would accept an OEM style pump and bracket?