got a bit more going last night,
Decided now was the time to fix the dash and prep the windshield channel. It turns out to be in much better condition than I thought.. I guess sitting in a barn for such a long time was not such a bad thing...
I bet from repeated bouts of condensation collecting on the inside of the windshield is what led to this.
Will finish cleaning and then tacking up the holes before I paint the top, front and underside of the dash..