This past summer I did a complete recover of my SIG P-Force that I had been flying since they came out in 2006, I think it was. I posted here and on Stuka Stunt asking the same question, as K2R is REALLY expensive. The best suggestion that I found was just plain old heat from a Monokote heat gun. Heat the surface of the wood, and watch the oil bubble up. Take a paper towel and blot it off, and then repeat until you get it all. I found that as long as there was oil in the wood, I could not scorch the balsa or plywood, so if you don't see any oil and the wood scorching, move on to another place. Some one to help you with the blotting will help things move along at a quick pace. Once you think you have it all, then wipe the wood down with your favorite solvent, I used acetone because I had it. On areas that I thought the new covering might not stick well, especially on plywood, I brushed on a coat of SIG Stix-It. I was very happy with the results. I weighed individual parts before and after and saw them get lighter. The model weighed about the same after as before. Try it, you'll like it!
Type at you later,
Dan McEntee