Shame really. Someone should tell the lady... It's not all about the money, it needs a good home.
If she's mercenary, or desperately poor well tell her just to stick it on ebay.
She's probably like so many people who see the big prices for restored bikes, but they have no concept whatsoever of the cost of a restoration.
Tell her from me, almost nobody makes any money out of a BSA twin (Unless they bought an RGS in 1965 !)