Keep at it because the way you talk and your analysis preference + being good with people is the key to what you want to do.

Don't be afraid to go low Sunday through Thursday to get some activlty.We use Pricelabs, but only as a tool; I have to override it continuously.

Maybe you can talk them in to seller financing with a big downpayment?

I could talk to you for hours about real estate.  

I will PM  you so we can talk.

I would definitely talk to a contractor to understand what your build costs would look like. 

Small talk, showing empathy, and expressing genuine interest in their situation can go a long way in establishing trust and goodwill.Be Willing to Walk AwayOne of the most powerful negotiating tools is the ability to walk away.

Another thought if you have already been in the house for a year is to continue to work on it, add more value and then sell it after two years so you can avoid the capital gains.

Stop hanging out with your deadbeat buddies who spend all day drinking, talking sports, and otherwise wasting away.

But also talk to your agent and get their take on this scenario obviously as well.