It's interesting. The page you linked is a store-front for the Kodak chemicals, but nothing is in stock yet - there aren't even any listed under colour negative or colour slide. But the parent site has a list of products (not Kodak branded) and prices that are not under a "store front" - as in, you can't add them to a cart and check out online. So it kinda looks like, once these Kodak chemicals start to be manufactured, you'll be able to buy them directly from that place (which seems like it will do the manufacturing). They have reasonable prices on the things they are currently selling. See here - thinks like 1 litre E6 kits for $42.