273 4BBL Throttle Linkage

I'm at a toss up between doing a full Lokar throttle/kickdown lash-up or as the post referring to Johnny Dart's image. What years/model am I looking at to imitate Johnny Dart's, assuming it correctly applies to the 1965 273/904 ? I have the 3 piece rod and bell crank. I have also found there are 4 different lengths of control arms on the transmission as well.

68 up 340 throttle bracket and the arm from the throttle bracket bellcrank to the throttle stud on the carb. The rest should adjust to work.