[i wont bother saying abaout using jacks and safe conditions................... but be carefull as always, a Range is HEAVY]
take out the coil springs and shocks.
remove the rear height compensator.
set the hieght at the minimum you want.
measure the distance between the top and bottom mounting points of the coils.
Make some mounts [top hat shaped out of steel tube and plate] for the top and bottom of the bag so that when fully compressed the bag and mounts fit in that space.
measure the mounting distance of the shock in this position
and
with the bags fully inflated.
source some shocks that will suit the travel you have [+ a bit either end if poss].
mount your comp/tanks/valves/etc
pipe it all up.
test it out checking that nothing fouls at any height or any steering position.
have fun.
[a few months later you WILL want to get more compressors [unless you started with EDC] and more tanks and bigger hoses and bigger valves.................. no matter what you start with you WILL want more when you realise how much fun it is
]
