If you look at some of my other posts you'll see the bomarc and it's tunnel hull, turned out perfect. Don't build it around the wing, horizontal and vertical stabs. Instead use them as spacer and remove after assembly. Shape the exterior and glass with 1/2 oz vail glass and finishing resin. Next, shape the tunnel to the tube by wrapping the body tube with coarse sand paper. Next, glue the fins and wing in place (cover the wing and fins with glass as well, sand to a smooth finish before gluing to the tunnel). Now glue the entire assembly to the body tube and insert the dowels through the tunnel and wing. Using this style of assembly gives you a perfect finish. I can't imagine trying it as per the instructions. If you're interest I could post some pictures this weekend and I'm away from the house right now.