For a price comparison, here's a '60 Debutante I sold locally (to a guy that bought it to flip.)
I got $250 for it. Granted, it is a higher end model with more chrome, but the paint on the Starlet looks to be in better shape.
I think cleaned up, the Starlet should be worth around $250 as well, to the right buyer.
Of course, markets vary by location. I am in Michigan.
I would say you are safe paying $100 for it, but who knows, if you pull out 80 bucks cash he may take it.
https://thecabe.com/forum/threads/1960-schwinn-debutante.141496/
View attachment 945809