Today I first installed the heater plenum/assembly. This has to be wriggled into place through the dash wiring/cabling, the two hoses and heater valve control cable threaded into their respective holes. Not too bad with a little self-enforced patience. I'd renewed various bits of foam stripping as needed and cleaned all the hoses. No photos ... rather boring.
Then, having first glued on the felt seal along the dash's leading edge (to prevent rubbing against the windshield; I used black 3M Weatherstrip Adhesive), I installed the dash ...
... and the instrument panel, glove box lid and vents.
John