the problem Seafury, with all due respect, is that when..... ever..... have you seen an "all matching numbers" USGI M14 rifle? If by that we are to assume that the serial number from the heel of the receiver was machine engraved.... not electropencilled, but machine engraved by the manufacturer , onto each of the major components, then I would agree with you 100%, it would be a crying shame to render such a rifle to parts.
However, in all my research and all my handling of these rifles.... I have never seen such an animal. I have seen electropencil numbers on USGI bolts, which denote the national guard unit they were issued to originally. BUT those of us who know the history of these rifles when they were imported here, KNOW that these rifles came from Isreal, not the U.S. and a great many do not have the parts they went to Isreal in them. Most are in fact mix matched parts to achieve a better rifle..... ie: take the best of the parts from all the ifles and build a bunch that are better hehehe essentially that's my take on it.
So, to say you have an all matching numbered TRW........ I don't buy it.
to say you have an ALL TRW is another thing and I do not believe that this make the rifle any more valuable in canada as compared to an "all" winchester or "all" HR parts.
to a 12(3) collector, sure....... but again, that doesn't apply here as the fellow wants to build a quality rifle from quality parts...... and the answer to his question is YES, you can do that, easily i might add.
To say or to suggest that the USGI parts are plentiful enough that tearing down a 12(3) to build a better rifle is a waste of time..... is simply wrong.
there does not exist a supplier for USGI parts in this country and only now are we seeing tidbits of new manufacture parts coming from 7.62 firearms.com in the states. There is no official word on whether we will be able to order trigger groups and usgi spec bolts for import from this company. You CAN NOT at this time source a usgi bolt/barrel from the states unless it comes on a built rifle or unless you jump through import export hoops that make those parts prohibitivley expensive.
you can however, do a full swap over from a 12(3) CA m14 to the norinco, LRB, springfield, fulton receiver's and have a fine rifle, with real value...... and you can actually take it out of your house and shoot it rather than feel good about yourself because you can take your 12(3) out of the safe and fondle it once in a while..... maybe pose for the mirror??? I am jesting with you, please don't be offended.
and parts...... have you all seen what usgi bolts/barrels/trigger groups sell for these days in the EE ? and how very seldom they come up for sale?
the last ALL TRW rifle i built onto a norinco receiver was for a gentleman who has 3 12(3) m14 rifles and decided, because the TRW was the nicest, to have a fine rifle built from those parts. He is reliving the days when he could use his M14 rifles and why would any of us begrudge him for that...... guns are meant to be used, not put up on pedestals and worshipped.
I'll add one more thing...... 95% of the "mixed" usgi parts or complete usgi "swaps" i have done have ALL produced excellent shooting reliable rifles.... regardless of the claim that you have a rifle with 50 year old parts....... it has been my experience that most of the 1293) CA rifles i have come across have been in excellent serviceable condition all around and for a guy doing the usgi bolt swap...... did you all know that it is bette to find a used usgi bolt with some wear than to use a new from wrap usgi bolt?
did you know that many times a new from wrap usgi bolt WILL not safely lap into a norinco reciever? yet i see countless gun nuts falling over themselves everytime a "new from wrap" usgi bolt comes up for 300-400.00 on the EE.......
anyhow, we can agree to disagree
but the answer to the original poster's question, is yes, it can be done, it doesn't cost a mint to do so, and I absolutely , personally GARAUNTEE you will be pleased with the result.