Hi Op,
The 9mm Tokarev's can be fun pistols. I agree with the poster above with regard to price ~$300 is fair if it came with all accessories or if it was a repurposed M20 variant. Based on how inexpensive they were, a lot were not well cared for in the years since they were imported.
Grips on these are interchangeable across different versions/countries but, there are minor cosmetic differences. I'd check ebay to see if you can find some that you like. I think Russian, Polish, Romanian, and Serb sometimes had initials around the stars....CCCP, VIS, etc.
Marschal makes nice new wood grips https://www.marschalgrips.com/index.html
Repro are available but, these looks bad compared to the ones I got for my Sauer 38H and Beretta 948 that were cleanly molded www.vintagegungrips.com
Magazines for the 9mm come in two flavors. IIRC the first Chinese 213's had straight/vertical serrations on the slide and used full width magazines with a spacer welded inside each magazine. Later pistols had angled slide serrations and Norinco pinned a spacer inside the frame at the rear of the mag well. These take a magazine that is shorter fore to aft than the 7.62x25mm variants.
If you can find a Serbian/Zastava recoil spring assembly, they make a nice addition. The used a captive guide rod arrangement that is a direct drop in.
I'd also suggest removing the aftermarket/importer safety. I've seen a lot safeties that flopped around and weren't dependable. These pistols were never designed to be carried condition 1. They do have a solid half cock notch. Marschal grips can be ordered to cover any unsightly holes. I cut down some scrap steel punches and make plugs for the holes in the frame on my Polish M48.
hth,
blitz