Took some liberties since I know his coat has sleeves, but I felt Zwei's coat fit the feel of the character, and it allowed me to focus on making his front view look good while covering up the back. It felt impossible to get a good sticker setup that would mimic his suit from all angles. I might try reversing the stickers/colors and see if that works (meaning: black body suit, with white stickers on the legs rather than a white suit with black torso stickers)...
So there's apparently no good pics to go off of for him yet, and they all look different from each other. But this is what I came up with, ultimately. I was disappointed in being forced to use the white knight fauld, but there was literally no other option unless I tried to use special equips to make his hip/thigh area look right, but all of my special equips are needed elsewhere. I opted for bulky Zwei's gear over the typical muscled armor as it allowed more freedom with patterns, had better abs, the spiked spine works well with him, and the neck scarf works great for mimicking his neck mechanical parts. Also the armor has those annoying gold parts that can't be changed.
Though, one of the reasons I hated being forced to use parts instead of stickers, he looks like total ass after armor break, while MGS4 still looks awesome.