The the steering wheel pads have been rare for some time, that is unless you know where to look.
The pad (like the rest of the steering column and turn switch etc.) is pre-facelift MK1 Ford Capri, so a trip to Ebay UK and you'll find them ranging from 1GBP to around 60GBP for a complete wheel. I checked and no current listings at present, but as many as 4 ended in the past 14 days so they do come up with some regularity.
You may have to obtain/change the motif in the center of the pad.
Julian
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