by the way the electronics is not an issue, i am electronics engineer by trade, making the headlight appear OK is more important, and knowing that modern lights are available for the DRS class 37 (and possibly 55) does anybody know of a manufacturer of headlight mouldings that would suit.
I would link too a site with pics of 31's
www.class31.co.uk
'cos this class is one of the first I saw leaving Tostre works at a very young age (my young age not the engine
).