I bought a few ROMY AKM kits from DPH Arms. All were top notch.
I bought the Romy RPK kit from them back around Thanksgiving time last year when he (Scott) first got them in. I was very happy with this kit and I'm probably one of the pickiest people when it comes to kit quality.
I also replaced the furniture with I/O new Romy RPK furniture. I added laminated PG and refinisihed all the pieces so to get a perfect coloring match.
I don't know what he has left. I'd suggest contacting Scott. He's a great guy to deal with and very honest. BTW - he does a lot of business over at Gunco.
Oh yea, almost forgot. I did use DCI NDS-7 receiver on the Romy RPK.
Here's 2 RPK-74 kits ready to be assembled - one Russian wood, one Russian black plastic sidefolder. Have two NDS-8 receivers for these. Bought scope rails for these from Tantal. These are both K-Var kits. More expensive but they are absolutely new. Romy RPK47 trunnion modification by Ted Marshall. Furniture sets put together from pieces purchased from; I/O, Stottman and Andrei' K.
Hope this helps with giving you some more information on what's out there regarding RPKs
RPKs are addicting but like mentioned before so are all AK variants