I have been in contact with BHive and they have a supplier called Clark & Clark Speciality Products.
http://clarkandclarkinc.com/mgbc.htm
Their Wheel Spanners.

Spinner Tool on an MGB Spinner

Diagram indicating a Deep Angled Rake. Is the rake Deep enough for the Roadster Wires and Spinners??
British Wheel Wrench, Eared Nut
Part #P1054..............................Suggested Retail: $49.95 plus shipping at cost?
The cover Part #P1090...........Suggested Retail: $14.95 plus shipping (made from cloth reinforced vinyl with velcro fastening.
I need to find out how the unit 'Locks Onto' the spinner as the photos are not clear enough. If it is a 'Spring Fit' then maybe it will 'Pop Off'??
Has anyone bought one of these who could add an opinion or two?