Have you found anything about replacement parts? Please let me know! I have the same wheel. Either will get a pedal for it (very unlikely) or will gladly sell for a very low price for parts.
I'm looking for either the whole wheel or just a pedal that will be compatible to that exact model (the pedal has 4-wire cable). Please let me know if it's available or if you know someone who can help.
Or can sell it for symbolic price for parts.