Save your money and use a MonoKote heat gun. I did a pretty thorough test of all the available methods of removing oil, and some one suggested heating with a heat gun. This by far worked the best. Works better that K2R, which is pretty expensive but did an OK job on balsa. Heat the parts with a heat gun and watch the oil come to the surface. Have paper towels ready to blot the oil off. Keep the heat gun moving a bit and you won't even scorch the wood when the oil quits flowing. A paper towel with acetone on it toward teh end helps also. A slurry made from corn starch and acetone works but not as well. Try it, you'll like it!
Type at you later,
Dan McEntee