I can understand where your coming from mollydodger but in Canadaicon we don't have the benefit of CMPicon. I'm very surprised that there isn't a lot more interest or knowledge about M1D rifles than seems to be available on the web.
To rely on CMP provenance is OK but it certainly leaves a lot to be desired. The US either loaned, leased or sold M1D rifles all over the world, including Canada, Denmarkicon, Englandicon, Hong Kong, Korea, Viet Nam, Thailand, Taiwan, Norwayicon, etc. Some of these nations, like Canada, just kept them in storage and other than to play with a few of them, never used them. Most went to Denmark in the mid fifties in a large sale. To nullify their existence by only accepting CMP provenance is like cutting off you nose to spite your face.

I guess you have a lot of rifles made up from parts in the US and it makes sense that it happens, given the availability of parts and the "mystique" of owning a sniper. It's to bad that the practise is so wide spread as to have an entire country rejecting the other rifles, just because they don't have CMP provenance. In other countries, the parts availability to make up these fakes is almost, if not nil.