Call Speedplay directly ( 800-468-6694) for a definitive answer. They are much better at answering the phone then they are at replying to e-mails.

My guess is that it won't work or will be so expensive that buying a new set of pedals will be more attractive. I know rebuild kits for my Frogs (bearings and outer plates) were priced high so that buying new ones (which included another set of cleats) was the better choice.