I bought a piece of aluminum angle and attached it to the work bench for later when I will use it to help bond the trailing edge together before riveting. I didn't take pictures of it but I used a length of scrap plywood to drill pilot holes through the AEX wedge so the countersink bit would have something to keep it stable and not elongate the countersinks as the wedge needs to be countersunk from both sides and this tends to open up the hole just a bit.
