A Fighter/Thief shouldn't even aim for rock bottom AC. Resistances and immunities are his lifesavers.
Being a Halfling will give you +
5 to save vs. spell. As an expert soloer, you must know how important it is for no-magic solo classes.
With Use Any Item, equip JansenWear and the Defender of Easthaven. Activate Hardiness, and you have 85% resistance to all physical damage. Do you have Ascension? Do one of the test evilly, and the 85% suddenly becomes 110%!
High Magic Resistance is easily obtained with Use Any Item. If you're feeling cheesy, you can even abuse the infamous Vhailor's Helm -> Pro-Magic scroll cheese.
Dual wield Flail of Ages / Celestial Fury and the Defender of Easthaven. You won't be disappointed.
Stock loads of good scrolls. Once you have Use Any Item, use your Simmie (you bought Vhailor's Helm, right?) to act as a "mini mage". Equip him with scrolls of Breach, Abi Dalzim's and Time Stop.
Tell me if you want further tips. [img]smile.gif[/img]