I finally finished fabricating and welding brackets for these saddlebags. Found the bags on Amazon, they are Musette bags, the left side is 15" high x 15" wide x 5" deep, the right side (because of the exhaust) is 12" high x 12" wide x 6" deep. The parts of the mounting bracket that attach to the stock mounting points on the bike are 1/8" steel and the frame that mounts to the bag and connects to the mounting bracket is 5/16" steel rod. I used 3/8" rubber insulated clamps to attach the bag frames to the bags and lined each bag with aluminum sheet on 3 sides (to give the bags some structure and as a backing for the bag frame).
The bags have shoulder straps that I used as safety straps to keep the bags from falling off the bike in case the mounting system fails.
The flyscreen is 16 gauge steel.