Frank,
I have one, bought it with the vinyl in bad condition. I am restoring it with new foam and leather covering. I bought it before I had my original S1 steering wheel. But I don't have the horn push.
I am located in Belgium. But I will need some time to finish the restoration of the wheel, because I am in the middle of my final exams. If you are interested I can finish it early july.
I was planning to put it on ebay once it was restored, but you are welcome to give me an offer if you are interested.
Kind regards,
Serge