Jakko, I think you've nailed it. Interesting the restoration (which is a beautiful piece of work I'd say) has the reversible AoS plates and brackets, but they're not in the kit. Hmm, time for a brass detail set. No reflectors on the backboard of the 'real' one either
A lot of modern Airfix kit schemes seem to be based on restorations, like all the aircraft from the Shuttleworth collection they've used. But here they're crediting the scheme as contemporary, which NOW makes me wonder what the restorer based his work on. Some restorations have gone with what the restorer thought was right (or what they wanted to do), irrespective of the actuality. For instance, many RAF vehicles, purporting to be wartime, are painted blue-grey, because it looks smart, whereas the wartime instructions were all airfield vehicles were camo'ed, and you'd be hard pressed to find any wartime pictures of a vehicle NOT in camo
Of course, Si, this does mean you can have a completely pristine and unweathered vehicle, just like the 'real' one!