That seems to be a onesie-twosie approach. On an assembly line (or even team based assembly pods) the resource-hours to assemble are likely to be far less. (However, you missed the QC & test step so there’s likely some time spent powering it up to make sure everything is working.)
The wiring should all be harness based. If they’ve engineered the case with that in mind, they could have a press in channel for the harness. Grab the harness off the stack, lay it into the box, press it into its channel and then you’re ready for the components. Install those and button up the box.
Aligning the optics should be jig based so they don’t have to actually fire the laser (and possibly hurt someone/something). Put the jig on/or stuff in it and then tighten that stuff down. Ready to go.
I’d expect it would be under a half-hour to do all of that once the operator knows the steps. I can tear down my K40 in an hour & half and I’m not doing it every hour/every day.
The crating/boxing is actually likely to be one of the longest tasks - grab a flat pack, unfold it, tape it (and/or staple), put the bottom layer of cushioning in (preformed styrofoam?), lay in the GF, put in the top packing foam, drop in the accessories (instruction book, power cord, etc), seal the top, roll it down the line.
All in all, I think they’d need fewer people or could churn out more. But I don’t think they’re going to wait until mid-November to start churning these things out. And there are likely more than 6000 (I think I saw somewhere north of 9,000) since most people likely bought the basic not the Pro.
Should we start a pool with an over/under on when the 1st one arrives, 10th one, 100th? 
). From the update delaying GF, believe Dan said at one point cancellations were at about 0.5% of orders, so 50 at that statement.