I did an instant quote with Sunstone. They charge $479 tooling.
I am wrong about the costs for small batches and prototypes - you don't need all the production aids and you can get very good, rapid, product now.
But don't compare hobbyist costs (sub-standard material, limited use etc) for tiny quantities with industry costs for production size runs (http://www.photostencil.com/products/electroform-stencils-hy...)
Board fab is over an order of magnitude cheaper than that these days. Yes, I have old circuit boards that I designed 15+ years ago that cost me $400 for two bare PC board prototypes, but today I can get the same two for about $50 these days, shipped express from somewhere in China.
To go even more extreme, I just ordered a handful of an existing design from OSH park just to see what their quality is. Three tiny boards cost me $5. Five bucks!!!