Quoted from Methos:$2500 at best.
Maybe 2 years ago you'd be right on but this is a different market now.
If I was selling mine I'd ask $3k. They are pretty hard to find now and EJS is right, several of them were cannibalized for parts - especially the cabinets for virtual machines - since Popeye was a cheap wide body.
That also aligns with Pinball Prices which shows a value of $2950 for 2 sold this year. @too-many-pins, doing some research on Pinball Prices with real data is a better resource than asking Pinsiders for their random opinions.