For big beasty, I'd use the Templar, or Barbarian, stat line and cost. Change him to a beast. Beasts can't carry anything, so to make up for that new limitation I would give him the W mod bonus for an animal companion (as per the Witch Spell). Include the +2 Damage modifier that the Templar or Barbarian would have for using a 2 handed weapon.
Move 5 Fight +4 S 0 Armor 12 Will +3 Health 12 +2 Damage 100GC
or
Move 6 Fight +4 S 0 Armor 10 Will +5 Health 14 +2 Damage 100GC