Looking at OSRIC (I'm afb), you could be an elven Fighter/mage, thief/mage, or fighter/mage/thief; Gnome figher/illusionist or illusionist/thief; half-elf cleric/mage, fighter/mage, mage/thief, cleric/fighter/mage, or fighter/mage/thief.
Dwarves don't make good arcanists, so they can't...