UK Old Hi-way Yellow paint idea..

I've located in Scotland and have finally got my hands on the ACMOC paint card and am exploring options for getting paint. I've been doing up a 1988 MB G Wagen for a while and have used Brantho-Korrux 3 in 1 paint with some success, easy to work with, durable, not too fussy with prep and good over unprimed metal. Can be brushed on, which I like, as I don't have access to a paint booth or decent large compressor with air drier or water trap. And also relatively non toxic, with no isocyanates unlike 2K.. Anyway they can mix any RAL or BS colour and have some standard colours of which the post 1979 CAT yellow is one.. Anything that's not a RAL or BS colour like Old Hi-way Yellow requires a minimum of a 30l order though and even with grand plans I couldn't really justify that amount for one D4.. The paint does have a shelf life of 5 years but I'm still not going to use 30l..So anyway I thought I'd see if anyone in the UK might be in a similar position, needing paint and fancy coming in on the order? Mine is a 2T and I know that originally it was painted Olive Drab as they all were at that time but I'm not really a military vehicle fan and so was thinking of just painting yellow.. as it would have been after military service. Here's a link to the paint and some info. Let me know via PM or this post if anyone wants to explore further options? Only possible problem is it's semi-gloss which I like but that might not suit a purist.

http://brantho-korrux.co.uk/page4.html