The price will depend on, to a certain extent, on the number of units required. But , as I stated in my initial post, the quality is very high & the strength & durability of the polyurethane belts is beyond comparison with the rubber "things". If sufficient interest is shown, TH will go into production. If not; then I will simply make my own for personal use. Hayward belt drive primaries are known & used throughout the Brit Bike world & in truth, have no real rivals. If I can get enough numbers signed up, even just provisionaly, TH will then have a base mark upon which to set his pricing. I'm happy to do one-off work, TH is in business & will not tool-up for less than 10 initial units; it's just not viable. I know that this is not the definite answer that you would prefer but, until I can talk unit numbers with him, he cannot talk definite prices.