Well done, Gina: a lot of work in all of that.
Some background: From memory, the AWM's Dingo was based upon a paint layer analysis, so the status of the original paint before it was covered with the next layer could well have been weathered.
The MH tractor was as supplied by the seller in Qld (I arranged for its purchase), so it's his gloss/semi-gloss version of Light Stone. Same with the Limber and the more recently acquired No.12 FGT. I think the 25-pdr in the storage area (there is also one on display in the WW2 gallery) was done in Lustreless Acrylic, which from my limited experience with it, is never a close match to anything! In the least, it was a modern water-based paint, so a different formula to its WW2 counterpart. Conservation were always so concerned with 'off gassing' of enamel paints into storage or display areas that the then-conservation manager almost always opted for Acrylic. So I've little doubt that none of the items coloured Light stone/desert yellow in the collection are a match to each other or to a 'standard' example!
Great work, Gina. We have all learned a lot from your labours.
Mike