Casting Cost of casting just a head in resin?

I've pretty much given up on doing a whole doll, but now I'm really itching to do head sculpts to stick on my 1/3 scale bodies. But before I start big dreaming about that, I was wondering about casting heads. I know there's tons of people here who've done this and was wondering what price range I would be looking at to get it cast? (I know I could try doing it myself, but I really don't think I have any room to claim as a workspace!) And are there any home casters on these boards willing to take casting commissions? what about matching resin colors? Any horror/love stories from people who've gotten just heads cast would be appreciated!