Thanks for the hints. The problem is that I don't have most of the items, or there are better alternatives for the slots.

BTW do you like the looks of all of the items? In my opinion f.e. the diverse Wizard cowboy hats look terrible combined with armor. Also many other items, especially helmets and gloves, do not fit well with some styles. I'm using a transmog mod for this reason. This is my current party with lvl 10 early in Act 3:

[Linked Image from i.imgur.com]

For example, the helmet of Shadowheart (third from left) is actually the Grym helmet (which looks terrible). For my taste the transmogged helmet fits the armor much better.
The helmet of Astarion is actually the Helmet of Arcane Acuity (the most overpowered and most ugly item in the game). Wether the monstrous transmogged design looks better is open for discussion, but at least it fits metal armor better.
The shield of my main Lara (Dark Urge) is the transmogged Sentinel Shield, for I like the normal round shield's look more.