A lot of drilling. I was able to assemble the entire tailcone and drill, matchdrill and mark all the holes.
A key piece to make and assemble is the aft deck. It aligns the horizontal stab and you have to be very precise in aligning the upper longerons, side skins and deck plate.
Now it’s time to dis assemble the whole tailcone, debur, countersink and prime. In case anyone was interested I swept all the aluminum shavings into a pile. They weigh 31g from all the holes being drilled and match drilled