I didn't have my camera with me but will bring one home tomorrow night and take pics of one I am building right now and maybe make some sense out of it. The problem but not a bad one is that most of the good retracts are slightly wider than the mount is stock in the wing. Not by much just a little. So you need to widen it. Now if you are recovering the wing or at least the bottom of it or better yet glassing the wing then it is an easy mod. Next when the retract is retracted the spar is in the way of the strut. So you have to make a "U" shape in the spar for the strut to go down into as it crosses the spar. Now that you basically cut half of the spar away you need to beef that back up so it won't break. What I do is take 1/4" ply and cut the "U" shape in it and cut it to the correct size and then use 30 minute epoxy and glue one on each side of the spar making it wider in this area and very strong. Like I said will take pics tomorrow night and it will make sense. Note: if carefull you could do this without screwing up the original covering and just touch it up with some paint and a brush.

Randy