Weaponsmithing....
As per my house rules, weaponsmithing and armorsmithing are always cross class skills.
However, in this instance, I'm going to let it slide a bit. If you want to work it into the story, we'll say that Kal is responsible for both Aerenar's dagger and the blade for Elig's spear.
Kal doesn't really know how to make good weapons however, and so the blades are poor quality.
Dagger - Hardness 6, Hit Points 1
Spear - Hardness 2, Hit Points 5
He has managed to make no other weapons. however, he does know how to make regular knives, which are just like a dagger but do 1d3 damage and have a crit stat of x2.
If you have other weapons, you'll need to record their stats on your character sheets.
Tamari: Halfspear - Hardness 4, Hit Points 5
Choric & Kal: Light Mace - Hardness 8, Hit Points 10
Ilsha: Club - Hardness 4, Hit Points 5
Your weapons have some wear, but from thing such as hammering and other mundane use. In a world where tools are often of short supply, you have to make do with what you have.
I should also make it clear how you will be allowed to gain skills. You need to RP your skill advancement. For example, you character isn't going to be able to take Profession: Blacksmithing if he has never set foot in a forge. I'm not going to be too strict here, but I'm going to require some teaching or training before you can take a skill.
For example: Kal doesn't know how to make weapons, but he has been trying. As it stands, he is the only character who I would allow to take Weaponsmithing. Even then, it is still cross-classed (See house rules).