The manual said the the easiest way to remove the temporary frames, which had been glued into the hull with a hot glue gun before the wires were removed, was to reheat the glue with the gun or a soldering iron. I tried that on a couple of the beads of glue and found it to be kind-of time consuming and messy. So instead, I used a sharp utility knife and carefully ran the tip of the blade between the hull and the bead of glue. I then gave the frames a little wiggle, and hey presto!, the frames came out. The residual glue on the hull easily came off with a putty knife. MUCH easier than reheating the glue if you ask me. The next steps for the hull will be filling the seams, and encasing the inside of the hull in fiberglass in the same way that the outside was done.