I played poison sorc to 129 this ladder before I stopped playing:
https://tsw.vn.cz/acc/char.php?name=DuduManArmor and weapon are really strong and cheap, same goes for shield. The helm is good if you get a high roll on it.
I used Devouring Cloud oskill instead of Lorenado to farm and clear (With +40 it’s about same damage as Lorenado, but better coverage) TU greaves are hard to replace, Id change belt to Asheras though for the DR% for Fauzt.
Arachnomancy is really good for bosses, and I did all charms (except Witch) really easily with it.
If you go for Lorenado drop some pts from sphere and familiar instead, and craft good gloves or buy some SU ones.
As long as you get good pierce and some poison skill duration you should be good to go.