You seem to have skipped over Bob Mould. I'm 95% certain of that one.

One video of Setzer with a big guitar doesn't mean he always used it. This is a bit later, but shows a smaller guitar. Also, look at the silhouette again. It goes from well above his waist almost down to his knee. The lack of depth may be confusing our eyes.

I can find pix of Devo with the biosuits, without the dome, but also without the keytar.

I wasn't sold on Stevie Nicks anyway. It looks like whoever it is is doing a ballet spin or something similar.

Also, I can't imagine that that's not Kate Pierson.

Duo: maybe Tears for Fears? OMD? Air Supply?