Don't agree with the dex + str bonuses for a mage. Keep it to int only.

Items which destroy are a good idea, I had the same idea myself. This would actually make points in lockpicking worth it. Food regen over a large time scale I also agree with.

The world should also have smiths and crafter who can build items for the player. Less powerful than when you take these options. But I don't know any RPG where you can't actually buy crafted items.