At the moment, neither item is being reproduced. The shift knob can be replaced with one that fits the lower line cars...it does not have the chrome band and is in the standard ivory color, but it will fit.
There has been some talk of having steering wheels done for the upper line cars, however, the cost of stripping the old material from usable cores, coupled with the cost of the mold for new castings, has kept the project only at the conversation stage. We'd have to have 100 wheels done to make them cost effective...and we'd have to sell at least half up front to recoup some of the cash outlay, and honestly I don't think 50 people would commit up front. We learned that the hard way with the 51-3K wheels...