Looking for someone who can make casted items

I'm working on a fursuit of my character, the rough description of which would be a "antro batgryph". I am making as much of it as I can myself, but the handpaws and forearms are a bit of challenge.

My character is furred all over except just below the bend of the elbow where the fur gives way to a birdlike forearm and hand. Here is a picture of what the fursuit will roughly look like. Sample picture SFW, link leads to FA though so be careful.

So basically what I'm looking for is a company or individual who can cast me an arm and handpaw out of latex or some other costume friendly material so I can get the most realistic paw possible.

I know I have seen a few tables at conventions where people were offering up custom casted parts and other pre-made parts. Sadly I never took down any info and its been a while since I've been to a major convention. Anyone have any pointers to people/companies who are reliable and more importantly, could do this by may or june? I am hoping to have my fursuit up to at least being a partial by Anthrocon and this is a critical component. I know it may cost, but money isn't a big object here.