I suspect several members have contacted your privately to try and buy the car. Their offers may or may not be fair market value for a private sale, of that you will need to do your due diligence, no matter who they are, or what they tell you. Your best bet is one of the larger auction houses, or if you want to play with the peanut gallery, you could put it on Bring-A-Trailer (BAT for short).
Highest and best is what you want for the family.......
I'll leave it at that
Bill