Techinspector1 - I have enjoyed reading your replies that are right -on.......as far as the Rolls its a Silver Shadow placed on a highly modified 1986 El Camino frame. I picked this frame to start with because it was the proper track. I made the following changes.
1. added 1 1/2" to the length of the frame.
2. connected the front & rear portion of the frame with 3"x5" retangular tubing.The tubing was added where the GM frame kicks out just aft of the rear wheels & forward of the rear wheels)
The outriggers were then cut off.
3. Used Global west upper control arms. This enabled me to run big GM rotors.
4Added a x-member
5.Used GM station wagon springs. The top of the rear spring perches had to be raised 3" to maintain ride ht.(the forward end of the 2 upper control arms had to also be raised 3" to maintain proper geometry. The lower front spring perchases were lowered 1".
6.Used a GM crate motor/700R4,Ford 9" with GM control arms(big Buick.
7.Interior redone(7 skins)
8.the RR wiring was removed & I wired it using GM color codes.
9. There was no room for a vacuum booster so I used a caddys hydroboost mounted under the floor.

The body required 3 mos of repair & I painted it black.

I had a back operation so my goal of having it done this mo have slipped. Probably another 4 mos. Since I was unable to do much on the car for several mos my wife told me to go buy a store bought car. So I bought a 2002 Z06 to play with while healing.........Don