That defeats the entire purpose of a numbers # SKS and hard to find year, especially when the importer is too lazy/doesn't want to get them properly pinned. It would be like buying a motorcycle that rather than having a speed limiter on it, has a anchor lazily chained to it because the dealer doesn't want to spend an extra little bit of effort to set it up properly.
The welded mags really pulls the value of a sks down for me... to pin them is the way to go!
BBQ paint franken pinned mismatched mag...
But then again... better than with a UN mark on it