I had a great response from both parties to my proposed solution and it looks like things have been worked out.
Quoted from jaytrem:
Any chance you can explain the other persons point? Thanks for stepping in.
It was a combination of a missed sale opportunity due to the 4-month wait and an increasingly heated back and forth between buyer and seller. Like I said, keeping it would have been stealing but things are not always entirely black and white. Actually, they mostly never are.
...And so I could see both sides of the story. But fortunately all got resolved and it only took me a couple of PM's
This also means I'm gonna close this thread.