That's why I asked: I was wondering if the colours used were the same, just in a three-colour scheme rather than a four-colour one.

Anyway, the instructions for Fine Molds's Type 3 are on Scalemates (scroll down to Instructions), but the painting instructions differ between that release and a later one of the same kit so that's not really helpful here.

Um … I find that a bit of an odd statement  You don't like a paint brand because you can't find good Humbrol equivalents to it?

But doesn't this site help? Unfortunately Scalemates doesn't seem to have instructions for the Pit Road Type 92 kits, so I can't check the actual colours you need.