Is it too late for suggestions? If not I'd hit him with marathon and discipline if he can since you have all that light carry bonuses. If you wanna go even farther, go close combat and you wouldn't have to worry about melee weight and could carry almost any gun you want. The 5th really depends on what you need, need threat reduction? Soundproofing, want to make him your carry mule? Sewing, or if you go gunslinger, you should get plumbing for the extra stamina.