pre-war triumph parts

[bon]

hello
i am a new member , i have a 1936 triumph 2/1 250cc single stuck in the loft dismantled for about 10 years now and want to make a start on restoring it. the main thing i am missing is a gearbox , i have engine , frame , girder forks , wheel hubs and most of the tin ware too,but i won't go far with out a box though and was wondering if you know of anyone who deals in pre-war triumph spares ?
thanks.