Why have lists of weapons with each having its separate rules and cost, when you can also have a "weapon menu" and what your order determines the cost? Sounds too good to be true? Well, let's try it out. 

WEALTH COST
Each positive bonus a weapon gets, adds +1 to the Wealth cost of the weapon. Each negative bonus lowers the Wealth cost by 1.

IS THE WEAPON...
Rare = +1 Wealth (weapon is Uncommon and bad guys will rarely have it, and won't know how to use yours)
Uncommon = no modifier (intrinsic)
Common = -1 to Wealth (weapon is dirt cheap to manufacture and bad guys often have them and ammo is abundant)
to Fight = go to A
to Shoot = go to B

A: To Fight

Is its weight
Light = its attacks are timed as if 1 Wider. (+1 Wealth)
- Balanced = +1d Parry (+1 Wealth)
- Whiplike = cannot be parried (+1 Wealth)
Heavy = +1 Damage (+1 Wealth)
- Unbalanced = -1d to Parry (-1 Wealth)
Cumbersome = Yes +2 Damage (Slow 1) (+1 Wealth)
- Unwieldy = cannot be used to parry (-1 Wealth)

Is its size
Small = conceal/draw (+1 Wealth)
Big = +1S Damage (+1 Wealth)
Massive = +2S Damage (Slow 1) (+1 Wealth)

Is its blade
Sharp = its base damage is WK (intrinsic)
- Mono = +1 Penetration (+1 Wealth)
- Tearing/Chain = +1K damage (+1 Wealth)
- Power Field = +1K, +1 Pen (+2 Wealth)
Blunt = its base damage is W+1S (intrinsic)

B: To shoot

Is it
One handed = W in SK (intrinsic)
Two handed = W in SK, Pen 1 (+1 Wealth)

Is its ammo
Las = +1 Pen (+1 Wealth)
- Hot-shot = +1K, +1 Pen (+2 Wealth)
Melta = +2 SK, +2 Pen, no spray (+4 Wealth)
Solid ammo = +1 SK, +1 Pen (intrinsic)
- Bolt = +2 SK, +1 Pen (+3 Wealth)
- Stub = +1 SK
- Dum-Dum = +1K, -1 Pen (+0 Wealth)
- Man-stopper = +2 Pen (+2 Wealth)
Buckshot ammo = -1K, Spray 1d (+0 Wealth)
Plasma = +2 SK, +2 Pen, Burn (+5 Wealth)
Fire = +2S, -1 Pen, Burn (+2 Wealth)

Is its range
Long distance = +1 in SK, Pen +1 (+2 Wealth)
Normal distance = no modifiers (intrinsic)
Short distance = +1 in SK (+1 Wealth)

Is its firing mode (only for Solid ammo)
semiautomatic = +1d Spray, (+1 Wealth)
Fully automatic = +3d Spray (+3 Wealth)

Is it
Accurate = +1d Shoot (+1 Wealth)
Inaccurate = no bonus Aiming (-1 Wealth)

Is it artillery = +2d Spray, +1 Pen (+3 Wealth)