But for what it's worth, you should skate through the normal playthrough without much issues. Don't worry so much about gear specifics, just look out for resistances and damage.
Understand that Bowzon is a glass cannon, kill or be killed kind of playstyle. Because you will have no defense with Ecstatic Frenzy, you need to focus on killing everything before it gets within melee range of you. Fortunately, Bowzon is pretty good at doing that.
Mana sustain will likely be your biggest struggle, but it can be mitigated by finding or orbing Mana leech on gear, and not over-using skills. There are a few rubewords and uniques that also give Mana after kill which is nice early on.
Good luck to you!