I have a Model 28 that I want to put a black grip adapter on it. I don't have much I can offer up in trade. I do have an Altimont Super Walnut N frame round to square butt conversion grip that I would offer up. If you have one of the bronze or silver finished models I might take one if a black one doesn't pop up. Proper fit is a must though.
EDIT: Maybe I didn't explain myself correctly... I'm willing to buy and/or offer up something in trade. I know these are getting to be more valuable and I didn't want to write a check to see how long it takes to get a new one, but I'm willing to give a little over the price of a new model plus some trade bargaining if desired.