Adding cruise

[1975 Fleetwood Limo]

I am wanting to add cruise to My '75 Fleetwood limo. I have the cruise control switch, with wiring. Is the following list all I need to add it?

~ cruise tranducer
~vacuum servo
~ turn sig lever with cruise on/off button
~speedo cable from transducer,to transmission

Anything else I need to find to do this job??

[cupcake]

The factory service manual is a big plus for seeing all the parts and fixing if it has any problems.