I've seen guys recently trying to sell similar bikes on Ebay for $200 or less with no success. One went from a 250 BIN to 175, and you could still read the chainguard. I just bought a bunch of parts off one a guy couldn't sell. You may want to look at adding up what the parts individually would sell for, as broken up it might pay. However it seems like some of the stuff isn't in primo shape so be careful.. Some of the parts could be incorrect as well so research before listing anything on Ebay as original Schwinn parts...The seat looks wrong, and bolts have been replaced.
I've purchased similar girls Sting-Rays in the $50-$80 range.
It would probably be more in the $150 range if it weren't missing all of the original parts and still had all of the graphics.