Thanks for your post. I've been able to play both sides of the colonial scale game for some years. I have a very large, often untouched colonial collection for skirmish/ TSATF type games. Valuable now because I have two younger sons, and the visual appeal and fun/ fast play works.
For 'serious' games, for conventions and researched colonial battles though, I tend to prefer 15mm operational level battles. I've been collecting and painting more than playing, but have serious 15mm collections for Sikh Wars, Indian Mutiny, Zulu War, Sudan, Boxer Rebellion, FFL, and now working on this. I like integrating gunboats and naval landings into games, and the Tonkin Wars seems to be a natural for this.
My one challenge has been to find good sources of detailed information - no Osprey Campaign book, no online painting guide etc. I'm reading through Black Flags in Vietnam, but really interested in tracking down the details. Not speaking/ reading French is a severe disadvantage in researching this period! I have found the Wikipedia to be exceptionally good for closing this gap, but nothing on artillery for the Chinese/ Tonkinese side.
For FFL, I have two generations of figures - first the battalions arrived in Saharan garb - white kepis with neck covers, blue overcoats etc. I pulled two units from the desert for these. This is also the source of some of my artillery crew so far.
Windrow's book clarifies that these were discarded after the first year etc. For the French colonial helmets in 15mm I use my Frontier Boxer Rebellion French Marines - with the flat helmet cover. I have two units with red trousers, blue tunics and white helmet covers. I have two more on the table for dark blue trousers and coats - I plan one with khaki helmet covers and one with dark blue.
I have Turcos, and Sailors and Marines already, and fortunately was able to find two bags of Annamites and Tonkinese from Frontier to supplement the French with Tirallieurs.
Anyway thanks!