If I was going to do something nutty like this, I'd go all the way and use Ti sheet.
Sure I'd have to watch out for galvanic issues, but
Next time the sear gets stuck, degas the marker, take off the valve, and look at the little hole in the back bottom of the body where the sear pokes up
The plano case is perfect. Nobody, I will be stopping by to visit Simon to pick up a few of his cases though!!