Some updates from this past week. The headliner was really not so bad after all. Only took a truck load of binder clips and some 3M 08001 adhesive. The upholsterer gave me a few extra yards of the black vinyl used on the dash to cover the A and B pillars. Used some 1/8 thick dynaliner to recreate the factory padding underneath the trimming.
I should have left the headliner clipped on and stretched overnight before gluing as it seemed to stretch the day after with the heat. It's not so bad that its sagging or wrinkling but it isn't as taught as I would've liked. Hopefully the visor brackets and the window seals bring it in a bit more. Does anybody know which screws are used to hold the visor brackets in place? I can't remember and don't want to use sheet metal screws as I doubt thats what the factory did.
And the much anticipated seats made it back from the upholsterer as well! Very happy with the outcome. The pictures are not accurate to the color. The actual color is bordeaux which is much darker. Went ahead and finished the last bits of the interior. All that's missing is the sunroof headliner and the seat belts. Eventually I'll cut out the hole for the shifter and permanently mount the pedals. Also put led floor lights operated by the door jam switch and wired/installed the wipers.
These are the floor accent lights I mentioned taken in the dark.
All the pictures make the seats much more red than they are. This picture is probably the most accurate example of the color I have been able to take.
Bonus Oslo pic
Next steps would be to cosmetically refresh the engine, possibly replace the clutch, install the glass and doors, figure out how what to do finally with the AC, as well as rebuild and install the brake calipers. Not sure which to tackle first honestly as it doesn't seem to matter which I do first. Any suggestions?