Based on what i have SEEN of their listings on Ebay, i would not recommend buying any double gun stocks from them. The quality of the inletting looks questionable at best and i know that on some makers, they are not up to snuff on gauge or year of manifacture variations.
What many of these rifle stock duplication guys dont understand is that with most american made doubles, one size does not fit all.
I dont know what gun you need a stock for, but i recommend you make sure that a pattern that fits your gun is used in the duplication.