I realized overnight that I was thinking wrong about how to assemble things... We need to put up the front wall first, then the back wall, then the side walls, so the goal is to get the front wall done today (we were working on the back wall yesterday.)
Front wall original plan
The front wall is taller than the others and I ordered exactly the right number of 2x4x10s... I started cutting them down to size then handed the job off to Hayden with the warning that there aren't extras if he goofs it up, so of course he goofed it up... he was supposed to set the speed square at 88 7/16", but set it at 87 7/16" (swapping that 7 was inevitable)... so I have a left-over 2x4x12 that we can use... then he makes the same mistake again, arg!!! So we headed over to the building supply and bought two replacement 2x4x10s.
Morning time-lapse #1 - 2m 10s (1h 5m real time)
Morning time-lapse #2 - 3m 17s (1h 38m real time)
Lunch!
Afternoon time-lapse #1 3m 39s (1h 50m real time)
D finished up the blocking off camera
Evening time-lapse 1m 18s (39m real time)