Can the forum-members help me identify a bodged SKS?

Hello all. I'm Rick. I've been trying to identify an SKS I purchased from GunBroker a few months ago. It was advertised as follows: "Russian SKS-45 7.62x39 20" Barrel with 1 magazine."
https://www.milsurps.com/images/impo.../AzkMLgr-1.jpg

As you can see many of the original pieces were gone. I have found a correct magazine and a correct receiver cover, but obviously they do not 'match'. I haven't found a bayonet or a cleaning rod yet. I'm not even sure what bayonet it should've had!

Following the very well-researched identification guides in these forums I believe I have a 1952 Soviet SKS based on the physical features still present and the serial number shown below:
[IMG]https://i.imgur.com/RZgVWrb.jpg[/IMG]

Unfortunately I can't verify that as the original receiver-cover had been replaced with one having a built-in scope base. I also can't really find any obvious Armory markings, although these markings do appear on either side of the receiver:
https://www.milsurps.com/images/impo.../53ucheY-1.jpg

I wonder if the very small triangle might be an Izhevsk Armory marking?
https://www.milsurps.com/images/impo.../asUuhbt-1.jpg

This is my plan for the rifle:
https://www.milsurps.com/images/impo.../1gsvU5N-1.jpg

Over the years my only criticism of SKS' was the length of the stock; hence I've added a butt-extension for my own comfort. The Ukraine-produced scope may not have ever been mounted on Soviet SKS', but I think it looks sharp, and it's pretty close to 'period-correct'.

I have also run into an issue that having a positive identification might help, or your expert advice might help. I purchased that old wood stock. I had to remove the "locking bolt"(?) that captures the front of the action because it's literally 1/8" to far back. With that bolt properly rotated so that the flat portion of the bolt is facing the action, I cannot drop the action into the stock. If I remove that bolt the action and stock fit together very nicely. I cannot slide the bolt in from one side and screw it down once the action is in the stock though.
Could the dimensions between my SKS(Soviet?) metal and the 'non-original' stock be different because they're from different countries? Any advice and knowledge anyone has to offer would be most appreciated. I know it looks like a "FrankenSKS", but it certainly wasn't a 'collector' when I got it.

I understand that this forum does deal mainly with 'un-modified' service rifles; My hope is to return this one to that condition with the exception of the Ukraine side-mount scope and the butt-extension.

Thank you all for any advice or information in advance.

Rick

I like to see someone try to restore a rifle that bubba has screwed up. It will be a challenge but certainly doable.

Soviet.

Mid 1950 to Mid 1952

If you post a close up shot of the muzzle, I can narrow that date of manufacture even further.

The wooden stock you have is likely from a Chinese pinned barrel rifle which have a slightly different position for the reinforcing bolt than the earlier screwed in barreled ones (which are made like the Russian rifles). To get the stock to fit people have removed metal from the front flat face of the stock bolt. If you fire the rifle without the stock bolt in place it'll likely break the stock behind the receiver. Personally I'd just get a proper fitting stock for shooting.

Op, you are likely spot on with the 1952 date of manufacture. The serial data archive that I have seen has four rifles with the Г Ю prefix. Three of them are feature verified as a 1952 DOM while the third is uncertain.