I have finally gotten all the parts of the puzzle to get some open cab canvas doors repoped.
First, there are TWO styles of canvas doors. The 'asymmetrical' (aka early - one large vertical window, one smaller about half size) and the later 'symmetrical' (both windows are the same size, vertical rectangle looking). The later doors started to appear with the newer, metal reinforced canvas top.... late 43 (they are in the 44 TM9).
I plan on getting the early doors done first. Two reasons. They would have been issued until stock was exhausted (as replacements, etc) and the only canvas tops that are being repo'd are the early, floppy style. If enough interest is there, the later ones will be done.
Metal and canvas should be done by early/mid 2011. Will keep the board posted.