After searching,it appears your only 2 options would be to either have 1 of the stockmakers to make you a stock,or tackle the job yourself. If you try making your own stock,the best choice would to use a laminated stock blank.
If you do attempt it yourself,remember to go slow as you can always take more off-but MUCH harder to put back. If I'm wrong and someone DOES offer 1,I apoligize for not digging enough.