Hmm.. i'm still not convinced.
But if you need help, i propose:
Small guns, energy weapons: + leather jacket
big guns, unarmed, melee: + leather armor
melee: sledgehammer instead of wrench
Sneaker: knife and radio
throwing: +1 granade, +1 molotov
Theft: booze, switchblade, gold ore
Speaker: robes and beer
barter: 5x booze, BB gun, rubber boots, brahmin hide
gambling: 10 caps, jet and cat's paw
traps: junk, 10x gunpowder, 5x shotgun ammo
science: 2 junk, 2 metal parts, 2 minerals, 2 wood pieces
outdoorsman: +2 gecko pelts, flint, 2x weak healing powder