Yes the build of Fainting Goats seem similar to the Kiko to me as well.
I love Fainters becase you never know what color you will get out of each breeding.
I bred my mostly white with black doe to my mahognany tri color(he only has a spot of white) buck and last year they produces a pretty mahogany tri color with a lot of white. This year they produced a black and white doeling. It's crazy how different the kids are and they are full siblings.