hey buddy i was in promax automotive in blackburn, melbourne the other day and theres an awsome suspension set up there. you can search for their website but there sprinter specialists.
for $1200 bucks i saw this second hand set up which had:

front:
jdm struts with rotors and jdm calipers
adjustable trd inserts
coilover kit
cusco camber tops
cusco rca's

rear:
trd blue shocks
trd springs

to me that sounded like a real bargain? even though its second hand.