My idea for the doors was to bolt 'L' brackets to the door. Problem with that idea is that the door gap at the back edge is quite close and skin is quite thin so not enough meat to recess the screw head.Here you go @Duncodin. The bolts go through the door edges as show here. I got the tip from another coupe builder. The rivet nuts are in the door as the image shows. Its rough on the inside at the moment but who cares as you can't see it. I have the rivet nuts countersunk more than shows here so they are flush.
The bolts look better than the image. When the doors are painted and the bolts polished up they will look good imo. I'm going tonrun some black or chrome L shape trim to cover the gap between door and skin. They gaps close more than shown here as just lose fitting for now
So I cut a small sheet of GRP and bonded it to the inside to make the skin thicker at that point
Head sits below the surface.
Once that's smoothed over I'll find a little rubber disk to stick over the screw head. Should look fine once it's painted with easy access to get the door skin off and work on the handle when necessary.
I've prepared for 6 brackets per door but after 6 on the driver's side I decided that was overkill so passenger side is only 4. Feels really solid though.