Steering wheel was very tatty in ours, I bought a used, low mileage, like for like replacement in as new condition for less than 15 quid delivered, IIRC. Of course, going that route means no airbag or radio control problems.
Fitting aftermarket steering wheels is a very grey area these days. Technically any of the non-airbag aftermarket steering wheels should be an MOT fail, although I believe there is some exemption for cars fully modified for rallying.
Alternatively, it may be possible to fit a wheel from another Honda model, make it all work and pass the MOT.