While I am waiting for the replacement parts from Classic Parts, I decided I need to find something else to do in the meantime. I turned the cab around, and went back to work on the left side.
I dropped the floor just enough to get the inner cowl panel between the floor and the door pillar. It actually went easier than I expected. Then with the help of the wifey, I realigned the rear of the floor, and with the help of a jack and jack stand, got the trickier parts of the front back together.
Here is the inner cowl panel. It needs a minor adjustment, but I should be able to do that with it in place. I really don't want to have to drop the floor, take it out, and repeat.
It is just hanging loosely in this image. It's not installed against the cab. It's actually a tight fit; I may need to shave some off with the Dremel.
I think the door pillar I installed might be a bit too far from the floor. I may have to try and bend it in place a bit. But that has to wait until tomorrow.