RE: GP Sky Bolt is HERE!!!!
I've had my Super Skybolt for about 2 years. It is a beautiful airplane. I guess I don't quite understand your description. I remember that the outboard wing cabanes (I guess thats what you call them) were not fully seated when slid home but that seems to allow for some slop. After I got the bottom wing finished and bolted in place with the top wing. I had to shim a bit under one fuse wing root to make it fit tight.
I think you have to bite the bullet, glue tham together and start fitting.
My incidence came out perfect (dumb luck maybe). I have an OS 120 in it and still have the ABS cowl and pants. Unlike my Goldberg Extra 300, The ABS cowl has not cracked and still looks great. I did line it with glass cloth and resin.
The only thing I don't like is that I will probably have to cut the fuse apart if I have to remove the fuel tank.
You will love it when you get it flying.
Good Luck,
Bob