I would say bite the bullet and wait. That looks to me like a low end Schwinn. Turkey Wing brakes are usually on low end stuff. I bet it is made of gas pipe steel and ways a ton. Not to mention the condition issues.

Hold out for a Univega or Nishiki at a good price.

I just picked up a good condition full bike, Univega Gran Turismo for $300.00, sort of high middle for that model.

Good bikes are out there.