Outer Limits 4x4 Board

have a soa fj40, ome springs and 2" extended shackles. ordering 9000xls eye to eye and need some sort of oppinion on which ones to get.
front - 550mm from center of bolt to center of bolt.
Rear - 470mm from center of bolt to center of bolt.

I dont want my flex to be limited by the shock length but i havent tested the flex without shock yet because i need to change my brake lines.

not getting them from here but they have the lengths listed. http://www.rancho.com.au/ranchoshocks9000XL.htm

Thanks!