Am I Being Unreasonable? Original Owner Wants Car Back

I think there's some backstory from anther FABO thread of the OP's...

It took you quite a while to find this car you have now. And after you got it you've put a significant about of additional money to straighten out some things and make it a reliable driver. Seems there where short cuts done before. In the open market you don't typical get to recover those costs. But nonetheless you had to do them. And your car is not on the open market.

There is worry that any other car on the market would need similar repairs. And I don't think you do 100% of your own mechanical repair and diagnostics. First Mopar? So the repairs on any other mystery used car can rack up really fast.

So.... the price you offered at $40k is over open market for this car. But for YOU, this is a reasonable amount. Because that's what it would cost to get YOU back in the same position. That is reasonable, logical, and fair. Period.