20 years wondering no more

I would go back for sure and talk to the person that owns the car now. Perhaps they may not want to sell it but they might be interested in trading for something that they really want. Sometimes after a while, people get tired of their cars and really want something else. Maybe you could find what else they want and buy it for them and do a trade. Just a thought as it is something I would ask. Let us know how this turns out.