I've already resigned myself to this Tris. The bloke at Autocolour said the only other single cab examples he could find were at at Mitsu dealer in Kent (2 of a similar vintage but complete and for sale). Cotswold Vans where I bought it might have a better idea and i suppose there's the L200 forum (though it's really a club for the owners of flashier 4Lifes, Warriors, Animals, Barbarians, etc).
My model is shaped differently to the bulkier 4wd's and it seems you can't interchange parts with any old L200 :'(
On a plus note he said I could get pretty much its full value back, but it would mean the whole kerfuffle of finding a replacement.
All this for a little knock on the ice!