Good luck finding all those parts.
I picked up an ‘89 Norinco in an ATI Monte Carlo stock with a busted Tapco mag at a yard sale for $40 a longtime ago.
But even back then, it was gonna cost me almost as much to buy the stock, hardware, bayonet& fixed mag as beater unmolested SKS.
Biggest issue will be finding the right stock. Don’t think there’s much difference between short & long collar barrels but there is a difference in pinned barrels. And unless you’re getting it off an SKS forum, most don’t know the difference.
I just swapped back to an original fixed 10 round mag and enjoy it as is. There is (or was) a guy on Etsy selling nice wooden replacement SKS stocks, one looked close to the SKS original stock but with a rubber buttpad. Like $125. Advertised as Some Fitting Required but was supposed to be cut for all versions.
I think a lot of us wound up with bubba’d SKSs and bought up all those surplus take off parts, they’re harder to find...