Another source would be the 8th Army men with shorts. There are many pics of chinese troops with british helmets and tropical uniforms, the main differences being that they wore puttees instead of socks (probably a decent paintjob would do the trick) and that the majority did not have the characteristic british webbing (I intet to overlook this 2nd detail). Uniform was of sand colour but helmets were dark, grey or grey-green, with a small national insignia in front.
The officers wore a green uniform, with long trousers and boots, had swords and rode something that looked like a steppe mongol horse, or a mule (or perhaps was it a mongol mule).
These were probably the troops that the British trained in India. One pic from their training shows Bren Carriers in an impressive contrasting two-colour cammo in an horizontal wavy pattern.
Also, all the above applies for the Chinese who fought in the jungles of SA Asia late in the war, alongside the Americans (bar the martial-looking officers, that is). The wore all the above british kit, with American helmets, and much american armour, the artillery mainly including US mountain howitzers.