[Bestdj777]

If you have an emotional attachment to the Playball sets, have you considered just selling the cards that you purchased and holding on to the ones your uncle bought? Sets are typically worth less than the original cards. This would give you an opportunity to raise some money while still holding on to the cards with special meaning.

For the Clemente, maybe try to work out a deal for someone where you traded for an absolute beater copy plus cash? That way, you would still have a Clemente that your dad's money went to, but nothing that is tying up any potentially significant source of funds.

If you have to get rid of them, you will always have the memories. Think of it this way, you helped your uncle complete some sets--likely what his ultimate goal was anyway--and you have a great memory of your time with your father. At the end of the day, those memories are what is most important anyway.