If a much better slave turns up you can always sell one to make room for him/her.
If I went Theatrics on #1, I'd probably bolster, that agility with a Snivler, try to ride the initiative, agility & strength.
Focus on Presence bonuses on equipment.
Might try a War with Axes & Maces or Polearms. Human would boost your attack, Urk would give some endurance(might help on heavy armor at higher levels) Elaar might also be interesting with these stats.