Thanks for all of the responses, especially Mark Clapp for finding some photos of the actual car. I've done countless Google searches and it would appear that the 'triangle-fronted-gulf' really is a rare beast.
Thanks for the other suggestions. I bought my car in 2007 knowing that I would re-paint it as I don't like it's existing colour scheme; 7 years later I'm still undecided.
One of the reasons that I like the light blue / orange Gulf is the reaction that it provokes in people (and the fact that it seems 'sellable' in Gulf, if that is ever an issue). For example, last year, Dick Townsend and I were at a charity track day. His car is Gulf, mine is blue with white stripes. Without even asking what engines / chassis / performance they had, the majority of people wanted to go in the Gulf car, with mine almost seeming to be to consolation prize!
I had also pondered a Titanium / Black colour scheme, but with such a colour scheme it looks best if the car is kept in perfect condition; I use my car as much as I can, so it tends to pick up stone chips, all of which is more fitting with a racing colour scheme which is only improved with a little patina.
So.... P1076 in Le Mans in 1968 it is! If I do the orange in vinyl, it will be an easy swap back to more traditional Gulf colours should I ever fancy a change or wish to sell the car.
Thanks again for the input
Darren