I have to add in regards to the SA-13 is that while they have appeared only recently I would suspect they were purchased in the late 80’s together with the various Mig-29s, SU-25s etc.
Unit 60 BTR-80
1)Name changed to BTR-80A
2)Armament in slot 1 changed to weapon n. 76 30mm 2A42 A/C. Ammo load changed to 20 HE 10 sabot.
3) FC might have to be increased. BTR-80A in the Russian OOB uses 15, I don’t know if that much is warranted though, 1PZ series sights seem relatively
plain affairs.
The BTR-80s purchased were A models with the 30mm gun, as listed by SIPRI and confirmed by visual evidence.
Unit 984 UAZ Faktoriat from OOB 11 Russia should be added
1)Availability date 1/1988-12/2020
2)Armament weapon n. 151 9M111 Fagot
Unit 54 VTT 323 25mm
It could be given an X3 radio code. It seems to be a chinese variant and not listed or shown among the ones in north korean inventory. The KPA seems satisfied with the twin 14.5mm for even the newer designs.
Units 52-53-106-107-108-272-273 VTT-323
Land speed might be reduced to 21. Speed is usually listed as 60-65 km/h. Even if the north koreans squeezed in a few extra hp over the original YW531 they stretched the chassis and added a turret, as the chinese did with the B-531, so it is unlikely to be faster.
Unit 9 T-55 from the Russian OOB could be imported
Availability date 1/1967-12/2020
The north Koreans seem to have still in service the baseline T-55 model.