Hi Nigel,
Have you had a disaster???
I spotted this ad in the "real classics " web pages
BSA A10 PLUNGER. Complete engine with g/box, mag, carb and dyno, a runner. Crankcases, gearbox, dual seat, headlamp cowl and a box of small bits. £900 the lot.
Alan, 01643 702327, Minehead
Nothing to do with me etc,
Cheers
John