Well I figured I'd post my AFK bucc bay build with LTs involved. Combat time is roughly 12-14min due to some stat variations.
Auras: 3.7, 5.6, 5.1, 3.7
LTs: 3.2, 5.8, 3.5, 5.0
EV: 4.7, 5.1, 2.3, 3.1
Hint 1: If your auras are below 3.5k in range, I would highly suggest you give up 1 LT from each side to compensate for an aura stack in the center crystal to prevent trash mobs from going through to hit your crystal.
Hint 2: Deadly Striker Tower facing WNW to kill any wyverns trying to do dirty tricks