I'd suggest giving the wrap handle a chance before making that decision. As Bruce noted, Res-C isn't going to be an option, but I see folks selling knives that they've re-handled on other forums (mainly the "Trading Post" sub-forum on "Forums of Ramanon"), so I suspect you could get someone to re-handle a Scrapizashi in wood or Micarta -- a rubber material might not be as easy to have done to factory specs, but I've never looked into it. A leather-wrap might also be an option to consider. If you could find a rubber cylinder of the right diameter, you might split it lengthwise, then pin and wrap it to make a handle.
