You can refinish Polish furniture with a shellac and dye to mimic original Russian furniture, and there are guys on this board who do a damn good job at color matches (Z-Recto, JeepCreep, etc.) if you don't want to tackle the job yourself. However, you should know that Polish furniture and original Russian furniture are easily distinguished from one another. The pistol grips are different shapes, the reinforcing screws used in the butt and lower have characteristics which distinguish them, the laminates are completely different (especially the upper), and the laminates are of different woods, and hence, grain. I have done a complete Type III restoration using Russian wood which took me several years to locate. It was expensive, it was a long wait, and it is perfect and beautiful. If a restoration is what you're after, go to Tantal's website and look at the Type III project done by Josh, an AK afficionado of the first degree. The rifle there looks exactly like mine. If that's what you're looking to build, prepare to spend a lot of time researching historically correct parts and finding them (sources have pretty much dried up). Paying outrageous prices for real Ruskie wood is the easy part. Good luck.