Looking for 6571 NU

In the '70s we used to own a SWB Series 2 -petrol, pastel green. It had a full tilt then. Registration number is 6571 NU. We were very attached to it but our money rean out and we were forced to sell. We (and others, thank you) have checked the records and it is still taxed. We would like to find out where it is now and how it's doing.

Might have more luck if posted in the series section?
God luck itch your hunt