Hey Chris and welcome! Mark L has stated many times here that the original RR parts that can be ordered only fit a stock KR2 or S, and most are modified in length more than just the S; almost all new construction have stated they are definitely wider. This precludes the use of any of the pre-molded stock, as they will not fit the increase in width. It is your choice if you feel that modifying an existing piece, or making one from scratch is better. I can tell you that cost wise, scratch built is better. Depending on your engine choice, a Revmaster cowling might be a good investment. Grove landing gear is the easiest to install, but Dan Diehl seems to look the best from what builders report (mine is 5.00 x 5 Cleveland on Diehl conventional with Matco tailwheel). Most seem to like a canopy from Todd's or the Dragonfly supplier, but many still run the RR with mods for width. Dan Heath has a custom one, as does Mark Jones, Mark Langford. Mine is a Dragonfly that has been cut and dual gull wings made into the frame. Most builders seem to be looking at alternate sources of easier parts to work with, such as AS&S or Wicks, or Summit Racing (for belts, fuel tanks, MSD parts, etc...)
I believe the Dan Diehl wing skins are still available, but the push now is the new wing designed for the KR2S, the AS504X. Mark L can hook you up with a download for wing templates to install, and his web page details the entire process of conversion or one off construction. Most will be dependent on how handy you are, how much imagination you have, and how much patience you have. The more you like to tinker and do it "your way", the more I encourage you to just learn all you can, and then build it your way, to suit you. Remember, ultimately you have to be happy with your creation, so it needs to fit YOUR BILL, not someone else's. Happy building.... Colin Rainey brokerpi...@bellsouth.net