I think the playlist is done. I was worried about time, and knew of a few more songs I thought had to go on. So first, to make room, I decided to cut everything from the '50s, '60s, and '80s. It now covers the actual time of glam, '71-'75, (though I kept "Lust for Life" from '77). Then I cut my essential list down to 3 songs (which had to go on as 4 videos):
Gary Glitter - Rock and Roll (pt. 1)
Gary Glitter - Rock and Roll (pt. 2)
Slade - Skweeze Me Pleeze Me
Sweeney Todd - Roxy Roller
I curated the list and timed it; it comes to 8 minutes over 2 hours, with ads, which probably is 2 hours ad-free for this many songs. But there's no room for mo9re.
I've made the playlist public but, as always, here's a link for usenet:
https://www.youtube.com/playlist?list=PL_uEAOzPGnDGpOuqWRjNufabgzj473GU_