Speed.co.nz can get you eibachs at a decent price.
Otherwise look at making some coil-overs. Cammmy from FastFrogs, ordered a set from GAZ in the uk i can't remember what he got them for, and there is a guy on the 405mi16 forum making camber/caster top hats for them at the moment.
If you look at lowering it, i'd also look at getting a sump guard / skidplate made up as the sump is not protected and you will kill it. You can't see it all that well, but you can see on the fold all the scratch marks/gouges from where mine is being chewed up: