So apparently my French marines are not marines at all but are sailors, thanks to Stuart A and Roy for pointing that out – if only I’d applied myself more during my CSE French lessons.
Steve noted the fact that Roy has a surplus of Sailors of the Guard and kindly sent these photos of a suitable paint job conversion - these are FN96 Marine (marching) converted to Young Guard Tirailleurs Grenadiers.
I’m pretty sure that I’d heard before that the Hinton Hunt French Marine figures were often given paint job conversions. Some of the figures that I have came originally from Don and look to have been painted as either Westphalians or Saxons.
Any other suggestions?