Koldt,
Notwithstanding opinions to the contrary (which I duly respect for their purist "milsurp" approach), I would also offer the following pragmatic observation. With only 3 x 12(3) CA C1 SMGs in private hands that we know of, the gun in just about any conceivable condition will always be about as close to the "Holy Grail" of post-WW II Canadian military firearms collecting as you are going to find. In the grand scheme of things, the innate rarity and resultant collector value of your C1 SMG and accessories will always hold fast. With such a rare and desireable piece, I would suggest that there is zero difference between "original" and "refinished" condition. Any serious collector worth his salt would leap at the chance, regardless of whether or not the SMG has been reparked to factory specs. Given that CF weapons of that era were routinely refinished with non-serialized parts swapped to restore functionality, what the heck is the difference?
It is one thing to consider the relative values of an original versus reworked/refinished WW II collectible that is otherwise readily available. No one will dispute that a refinished P-08, K-98, Enfield, etc, is worth far less than an untouched factory original specimen - even if the original is somewhat "rough". But that is only because "unaltered" originals can still be had - albeit for a considerable premium. The same does not hold true in the case of our C1 SMGs. There are exactly 3 x CA examples on the Canadian market. Given that there are so few, and knowing that such firearms were routinely refinished during their service lives? I cannot honestly see the inherent collector value being unduly affected by having the gun refinished. At least not to the extent that it would make any substantive difference to the potential collector attractiveness nor resale value....
I mean really - can any of the "milsurp purists" on this board honestly state that they would offer less for a professionally refinished C1 SMG (assuming 12(3) status) than they would for a scarred and somewhat rusty original? Perhaps I am wrong, but I think not. My guess is that just about anyone with 12(3) status would leap at the chance to procure a genuine piece of Canadian military history regardless of original finish versus professional restoration. Add to that the fact that you and I both know that the current wear to the gun's finish occurred as a result of its use by an African nation rather than the CF, and the point becomes rather moot to me. But that's just me.
As I said, I had zero qualms about refinishing my own C1 SMG back to the original C.A.L. factory-fresh appearance. Like you, I prefer my modern military firearms to be as close to "new" in appearance as possible, despite the fact that (until recently) I fired them all on a regular basis. I reckon that if you or I were to offer up those SMGs for sale, they would sell in a heart-beat regardless of the finish. Based soley upon what they are and what they represent. The impact of refinishing (plus or minus) on the the sale price of such a rare piece would be inconsequential. Rarity trumps all else in this case. Kind of like a professionally restored FG-42 coming up for grabs. Perhaps an extreme comparison, but you get my point.
At the end of the day, it is your gun. Do whatever the heck makes you happy! Assuming that you don't chrome the darned thing or otherwise deviate from the maintenance that your SMG could/would have undergone while in military service, you are good to go.
Insistence upon "purity" is a luxury that can be applied to firearms which are still readily available (for a premium) in unaltered form. When you start talking 3 of a kind with nobody that I know of willing to sell? Refinishing the gun to factory specs IAW standard CF practice has no discernable consequence WRT potential resale value. Really - who is going to turn their nose up at your SMG (should you ever decide to sell), just because it was re-parked at some point - just like every other SMG that was ever in the CF inventory?
Food for thought. I certainly have no regrets about refinishing mine. It looks factory-fresh and that turns my personal crank.
Cheers,
Mark