Rick,
In my FFR Cobra, I used the Ford factory cruise unit. Took the switches out of the steering wheel and mounted them in the dash on the far left side, hidden by the top of the door. On the Willys, I used all stock Chevy parts. On the 59 Thunderbird, I used the Audiovox type CC unit with the switches hidden in the ash tray.
"If you want my parking spot, take my M.S."
Bill