Holy green giants batman! Lst2 xxl shocks.

[JThiessen]

You need to get rid of the tie rod on the rear arm to get clearance in the back. Other than that, its just a matter of putting on spacers to offset the shock far enough from the Arm and the tower so it doesnt hit on anything. I doubt if you want to go the route of the FLM towers - but if you do, check out out my thread (which I think you've seen).
FWIW, I'd make up a turnbuckle or something that spans across the outside of the two shocks to keep them from bending inwards (the shocks will sit quite a ways off the tower). I put a piece of AL channel on mine - but I think I'm going to mod up a turnbuckle to give me the ability to change shock locations.