Hi Craig, thanks for the reply. The sketch was done by Bruce Parker.
It is with his help that my WT will be a heart stopper.
the box was previously lined with 10 test/beaver board, it is now lined with
mahogany door skins finished with Linseed oil. Shellac will flake in time and is very expensive. these are materials used during ww2 in different Vans.
Another question, being a AL box was a Bus bar used and then grounded to the frame? dg
.