would this set up work well if i was to use ome +5" shocks on front with ome 2" lift all round and qt Hi-flex Suspension Kit for the rear

For what, on what, with what?

on a 90 will be used for Challenges and green lanes

in short, yes. i have a similar set up but with no hi flex stuff and the +5 rough country dampers
i get this much movement with no front end movement and no spring compression(spring rates are wrong!) this wasnt pushing it either, i ran out of ramp, it has been on top of it before.