trade rallye speedometers ?

[RedFish]

I currently have 67 model 120 mph speedo with trip in my car. My problem is with the 67 unit requiring a collector nut rather than the quick clip for the cable.
To install cruise control I will need a 68 or 69 model 120 mph speedo w/ trip that accepts the quick clip cable.
I'd like to trade if possible. I'll include the 67 type cable too if needed.

 

[RedFish]

Bump I've been studying this need.
I believe I can use parts from a nearly worthless 68 up rallye speedo to build the instrument I need. screen , needle, trip clock, not important. I have three 67's speedometers here to work with.