Whoever Rimmers contracted to remanufacture TR7 door panels and seat covers, undoubtedly supplies the rest of the TR7 vendors. It would be my guess that everybody else gets them from Rimmers at a discount and resells. Pretty safe bet that there isn't more than one company remanufacturing these things. Not much demand for them. That's why they are available for a time, then unavailable for a time, then available again. Obviously there needs to be enough demand for them in order to justify making whatever the minimum run would be. Someday soon there won't be enough of a demand and then they will be gone forever. If they are available now and you want them, buy them. 2 weeks? 2 months? 2 years from now? they will be gone. I need a set of the blue seat covers. Bought a set on Fathers day last year, went back in August for another set- NLA.