DCI says that they can remanufacture a steering wheel to the buyer's design standards. You might follow the link to the sellers website, but I think this is what I'm going to do with my worn steering wheel.
https://www.ebay.com/itm/Porsche-996-986-993-Carrera-Boxster-4-spokes-Sport-Flat-bottom-steering-wheel-/252549478268?vxp=mtr&hash=item3acd1f377c
They can probably tell you about fitting a 996 wheel on a 986 column, too. Fitting a non bag wheel on my car? I really don't think so, even if it were a track car.