Durango For Sale

I'm helping Silvia and Jaume sell their Dodge Durango. She took a transfer to South Africa. Jaume put an add in the Trib and they guaranteed the car to sell or they would continue advertising it for free. That was two months ago. I finally had one looker - an old guy with a note pad that did not have time to drive it because he had another appointment. This guy will never decide. I put it on Craig's List http://wyoming.craigslist.org/car/740023428.html and got two responses within the hour - apparently from one person using two aliases (similar grammatical mistakes, phraseology). One alias has asked for personal information so she could send the check.