Close.............maybe no cigar. But let me think a bit here. I changed my standard steering wheel for a leather wrapped wheel 6 years ago and as I recall removal of the telescope lock was not a big deal. With the centre section of the stock wheel removed (2 small sheet metal screws from the back side) you will then see the lock-unlock lever and base. Three small machine screws attach it to the locking shaft. Swing the lever to the unlocked position and remove the three small screws. Set the lever to one side and unscrew the locking shaft (should come undone by hand) and pull it out. Then you can unscrew the steering wheel nut. Leave the nut on the steering shaft so that it is flush with the top. Then, with a steering wheel puller, tighten up on the wheel and smack the top of the puller centre bolt with a hammer. The wheel should pop off. you can then install your new wheel.
I don't know if it will have the cavity necessary for the telescope lock or not but if it doesn't you may be unable to use it. If it does, reassemble the telescope lock and go crusin'.
Also, welcome to the best Caddy forum in the world and BTW, how about some pix of your ride?? Others here will lean on you (including talismandave) for pix. You will have to get used to that.
Cheers...........R