If you installed the
patch before you started your current game, Finnigan in the cellar of the Ducal inn in Verdistas carries survivor supplies, often including scorpion traps, and other stuff. Otherwise, Blake in Ars Magicana and Mpenzak in Verdistis sometimes carry them.
If you quick save before running your mouse over an item/chest/merchant or hitting the alt key, you can identify the item or trade with the merchant, then quick load to get different stats or inventory. This can be done repeatedly to get the best stats or specific bonuses on an item (save after finding good candidates) or looking for specific items (such as spell books or charms) from merchants. Don't waste too much time with this, though, it really isn't necessary to get the best possible equipment.