Well I tried many places (Including Triumph) and the only place local that I could call into was Simpson exhausts just off the M4 in Slough. Not the easiest place to find, but hey sold me a big box - enough for two full repacks for a great price. In their workshop was a light blue 40 - I would go as far to say it was the best recreation that I have ever seen - a full steel monocoque and many original parts painted in powder blue with a single white centre stripe. The bodywork was very accurate with a driver Gurney bubble - was so good I'd have believed them if they said it was an original car. Had one engine and a spare one for it too. I took a few pics that I'll post when I get a chance.