I have an APC steering wheel installed in my 88. I purchased the APC adapter, but a part of it was missing (the actual adapter flange) and it would have made the steering wheel 1-2" closer to me... which I did not want.
I used some 1/4" steel and made my own adapter (grinder & drill are all that are needed) in about an hour. I used the APC splined hub, the APC contoured cap (covers the outside of the column, then my 1/4" adapter (bolted to the APC splined hub) and then the new APC wheel (bolted to my 1/4" adapter). I have not noticed any difference in the location of the wheel.
If I can get my digital camera to work, I will post a pic of it installed.