So I think where I am is that I will use a French cleat at the top of the cabinet (like in my drawing) but maybe make it a bit wider. I will screw through the “nailing” strip I have incorporated at the bottom of the cabinet but also add a baton on the wall underneath the cabinet.
I’ll make sure I use screws for the job that won’t shear of as well! Larry Geib – I’ll make sure I never sit underneath the cabinet just in case.
Sven-Olof Jansson – I’m not sure if I’m ready to cross to the dark side and do “pins first” dovetails! I have never tried it though so I guess I don’t get an opinion until I’ve given it a go. I did something similar before, marking tails on long pieces, and I created a bridge out of clamps to rest the board on and stood on my bench to get the hieght to mark the tails on to the pin board.