Welcome to the CABE!
It's a Schwinn "Pea Picker" Krate which is a collectable and pretty desireable model, and it looks complete. However from what I've seen most Stingray/Krate collectors want nice originals, or restored bikes. I'm not a Krate or Stingray collector myself, but if I had to put a price on it I would say around the $400 - $500 range.
Although it's a desirable model, you're going to have a somewhat limited audience to market it to, due to the poor condition.