As crazy as it sounds, I think the Gideon would be very simple to do, especially the jacket from the final scenes. The jacket itself looks like a typical pattern, except it's white fabric (I think it may be white vinyl fabric, or something similar) with black stitching that adds details (by the way it looks, Wright was trying to have the jacket look like it had a "drawn" appearance).
The second easy one I can tell that can be done is Lucas Lee. I mean, Leather Jacket (biker style, black or possibly gray), black T-shirt, black (possibly gray) pants, belt with a steel/pewter belt buckle with "XX" on it, and a wallet on a chain (with possible black chain). I tried to see if I could spot the footwear, but I can't tell if he's wearing boots or all black sneakers in the style of the classic Converse basketball sneakers (which I have seen before).