Fiberglassing done. Not too messy. I used 3 layers of mat and it really doesn't like to go into inside corners

The plug has been spray glued and aluminum foiled. I kind of like the look, maybe I'll finish the tail in aluminum foil. Everything else is wrapped in plastic because I am a messy fiberglasser

The seat part of the tail can't be prefabed off the bike because the tank is up underneath the seat. Here the seat is plastered on the bike. The round indentations on the seat are for the T nuts that will secure the seat pan. The round indentations on the sides are for T nuts that will anchor the back of the tail with bolts through the fender holes on the horns. At the front, the sunken areas go down to the frame crossmember for support and the aluminum tongue I made that goes under the crossmember similar to the stock seat tongue. The square holes at the back of the seat go down to the frame to support this part of the seat

It's warm enough in the garage so I tried the plug on the other '78. It looked OK on the '79 frame in the basement but when I tried it on this bike which has a rear wheel, it looked too high, so I channeled it over the frame horns. As long as I have 3 and a half inches of clearance over the rear tire I will be OK. Those gigantic turn downs will have to go