well try chain hunting to get gold. helps sometimes. and hunts give a bit gold aswell.
as for the mana problem, get the augements that let you regenerate mane when you get hit, when you deal dmg,...
and make a paladin type out of her. give eq so she can tank real nice and give her healing magic (which u allready got) that way she wont loose mana with those augements.
you dont rly need offensive magic imo, and when u need it just give gambit like foe

ice weak

blizzard, i kow you dont have these gambit yet, but u won't rly need them untill you get them