Very cool!
I would pay a grand for them. Or, offer less, and see what they would go for. A Grand does not buy much anymore.
I would want to make sure that they are truly unused.
And in turn, I don't know how good it would be that the fridge, or dishwasher was never used. I am sure that they would need attention to get them up to shape.
I think that it is best to get the address where these are located. If you don't see the ad again, keep driving by because they might be by the curbside before you know it.
They are unique however.
Brent