I just thought i'd post here that the National Science Institute, previously known as The Geek Group is closing down and having a big 'going out of business' sale at the moment.
This includes their Laser Lab.
It's all cash only sales (no shipping). Ya have to turn up.
No idea how much stuff is left but someone said today that a 3 phase laser is still there.
I'm not associated with them, I just watch some of their videos on youtube.
Anyway, might be worth a look if you're in the area.
https://www.facebook.com/TheNatSci/
https://thensi.org/
They are in
902 Leonard St NW. Grand Rapids MI 49504
At 9 Min 6 Sec of this video there's a short bit where you can see two lasers in the mess.
https://youtu.be/da8ogAfkZeo?t=546