There is a place that sells wood around jacksonville that has what you need. I will try and come up with the name of it. They have it on had and it comes already in the size you need and everything.
I couldn't find the place I was looking for but if you do a search for exotic hardwoods or wood turning you will have more info then you know what to do with.
I think if you try most places that sell any kind of high end woodworking wood you will find what you are looking for in the wood. As far as specs, someone else will have to help with that.
Also, here is one webpage that might be of some help.
i'm in the same boat, looking for info and materials. on ebay search for woodturning lathe turns up a lot of wood (insert "that's what she said" joke) that would be suitable for call making.
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