Basket Full of Equipment" SFW version mod is the only mod I use, since it's very first days, because I wanted armor without pants and later loincloths-like armor for my Barbarian. I'm not sure I would even play the game without this mod. But it does not allow you to set general stats to armor, like shields. Once there was an additional shield in the mod (I'm not sure it's still in the current version), you could give it all the + AC you wanted. But I want a change for all shields in the game, not for the player party only.