if you look close in pic #1 you can see the top screws across the dash and how they are spaced.

with a razor knife or some type of blade, cut a V notch over the center of each screw then you can wrench the hex screws out.

well worth having the glass man remove/install the glass IMHO.

in pic #2 you can see the 1 dash support I left in place and only removed the dash shell/frame with top center duct work left in place. IIRC there are 1 or 2 screws on the plastic duct work that is a PITA getting at them. if you are keeping it-remove the screws first don't rip it out.

with the seat out the colum will hang down enough to let the dash frame drop off the 2 colum studs. I might have did it with the seat in place?