Got the cab doors mounted. They are made from 1.2mm sheet I cut from some old draftmans A1 sized plan draws we pulled from a dumpster (one mans trash is another mans treasure). They had a nice fold in them so I used it as the top of the door. I don't plan on having side windows.
I drilled and tapped M3 into the flatbar hoop, M3 nuts & bolts on the door.