Yes please, minion resists above 75%are useless, so try toget to exactly 75%, 1 2% more/less don't matter I suppose.
I believe that Akara is better than Fauztin since +1sk and tons of stuff for yourself, or even if it's better, akara should be enough until you get a good RW on sacred base or a shrine craft.
You might also find +sk things helpful, like Kali into hands (pul rune, +2sk), +1sk rings, +2/3sk amu... I pretty much went skills over minion stats during leveling and worked fine.
Duriel on Hell was, well... fun
I went in and when several spirits died I just TPed town, resummoned, healed and went back and this again and again until he died (took quite long but I never died thanks to not staying there too long). If you can manage to resummon fast enough while not dying to the fortresses, even better.
If you still need further tips, just post an armory link (if it's not here already, too lazy to scroll up sorry XD ) and I can try to tell you more.