with VERY minor mods to the strut mount (knock out one stud on the mount) a SRT4 strut/spring/brakes/knuckle bolt into an omni. you might have to slot the upper strut bolt hole where it meets to the knuckle to get the camber correct but thats cake. srt springs should be correct for height but folks i know doing this are using coilovers so they can lower the cars.
Brian