Item system for my map.

Ok, before I start asking any questions, I'm going to explain what I'm trying to do for my map.

In order to make items you first have to gather materials throughout the map (Hit a mineral rock to obtain iron or something). Once the materials are gathered, you go back to a workbench and forge them together into an item (Iron + Wood + Wood = Iron Shield) or whatever. So far, the only system I've come up with is that you place the materials onto a bench that has an inventory of 6. You then use an ability on the workbench to forge the items. The items are simply replaced/removed using triggers. The checks to see what items are on the workbench used for what items will be made is also obviosly all done with triggers.

My question is, is there a better way to have this kind of system? A bug free, more user friendly way to do this?

Nope, your not going to get around it without using a dummy spell and triggers. Its not that hard to get bug free, I made a system like that where you could forge weapons and the only bugs were very obvious and easy to fix when tested.

Ok. Thanks!