Excuse me, I'm kinda slow. I now take it you're doing Youtube type videos, not doing this for the first time yourself. I wondered how somebody with your high post count wouldn't have more experience than a n00b like me.
https://www.youtube.com/watch?v=nPRk0aeZhVgThe first time I reassembled the sear cage from the FPB lever spring side first. I found that spring on the floor after the install was complete, after a week delay to order new ones (noticed I ordered more than one). Should've ordered them from the get-go. For some reason I'm spatially-impaired on how the sear and sear spring go in so I was having to refer to photos for them while the FPB lever and spring were already in place. Too much monkeying around going from that direction first led to me launching the spring. The second gun I did I reassembled from the opposite side, so the FPB lever spring went in last. Worked a lot better for me that way.
Kinda nice to have an articulating arm magnifier light if your eyes are like my 57 y/o specimens.
The best advice I found was that if you're going to install a new hammer, order a new hammer strut and don't jack with trying to remove the disco and old hammer from the old strut.
It's far easier to press in CGW hammer pins with a bench vise than to try to hammer them in. OEM pins might not be a problem but I've never tried them.
Have extra pins and springs on hand before you start. I was held up the first time waiting for replacement safety lever springs and FPB lever springs. Same would go for front sight pins on sight installs.
Painter tape to the outside before you even think about touching your gun with a punch.
Plastic tray with dividers for holding parts in the order they were removed.
Lots of people recommend doing the work inside a large baggie. I never tried that. Maybe I should have the first time. I can see that being as much of a hinderance as a help.