Ok, my thief archer character found the fletching calipers and the leatherworking tools. I've figured out what is needed to make bone arrows, and I've cured some hides. But...now I need metal nuggets. What metal nuggets? Gold or silver? Or something else?

Also, is there a basic guide to what this mod includes somewhere? All the readme PDF that came with MMM says is basically "you can craft stuff with this mod". I'm not looking for ingredient lists or anything, just a basic idea.

There are actual items named Metal Nuggets, I am not sure where to find very many, only found one in a week of having MMM.

Maiev: Check out the official http://pages.suddenlink.net/corepc/#_=====_Martigen%E2%80%99s_Monster_Mod_%E2%80%93_Hunt.

You can make Metal Nuggets from any metal dishes. EG. Metal Cup, Metal Plate, etc.
Same is true for Silver Nuggets.
Gold nuggets, it seems can only be found.

Unless you also have Midas Magic.