I'm really sorry to read this Ian, we all shared your joyful journey to ownership and great service from BHM and to end up having to pay this extortionate amount truly removes the joy factor. I wish you lots of Luck with a workaround possibly involving one of your UK properties.
If you need another UK address I can provide you with a choice of two if that could help.

Regards Richard

1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Connaught Green +8 prev