how about some shots of Habu Saki
i did some looking around and i havent found anything on Lin Kuei besides Mortal Kombat lore.
and even in Mortal Kombat cannon. the Lin Kuei were not ninja per se.....they just dressed similar like in the early versions
of the game...it was more convinient to just have color palette swaps. then as software came more advanced you will notice
the sub zeros take on a more different look than the typical ninja like Scorpion.
according to britinnica encyclopedia.
there is a large city in norheastern China formally named Lin kuei, also spelled kweilin. also known as guilin, or lingui on the west bank of Kuei river.
im waiting for my suscription to be renewed so i can get further into on that region