where do you guys buy really, really specific fur?

[Drizzle.]

im not talking like, really commonly used furs that you get get on basically any website that sells fabric; i mean very exact colours that only seem to be available to purchase when theyve already been made into a product (as opposed to buying the fabric itself, you can only buy items made out of said fabric).

tl;dr im looking for a really specific shade of purple fur but i have not been able to find it in its raw, basic, just-fabric form. anyone know where/if i can buy this?