confused, steering gear compatibility

I am sure this has been covered . I have a real Frankenstein's . monster. My car is a 72 Scamp . The K is a DC big block conversion with Schumacher reverse conversion motor mounts. A 5.9 magnum from a 97 ram now sits in front of a 727 from an 80s pick-up. The 7.25 got swapped for a 8.25 from a 76 Dart. The DC k-frame was donated from a 75 Dart Sport that had BBP disc brakes. So all this cobbling, I still have power steering but looking to get rid of that soon. Old a-bodies out here are scarce at the boneyards. A guy around here has a 68 valiant, aluminum manual gear box and column. The question is, will this work for me , my front end is 75 Dart Sport, the body is 72 scamp. I've seen reference to large sector this and something about something else. I just don't know how to search this question. Any help would be greatly appreciated.