this is a pretty open question, lots of people have different opinions.
there are several different threads that you should read up and learn spring rates and the like
i would suggest getting in contact with ajps, dave will be able to recommend some good spring rates and shocks for you.
get some ae86 struts, ae86 jdm brakes, T series diff (drum will be fine) selby swaybars and suitable shocks/springs.
the thing will be sweet, but be prepared to spend a few grand on the sus, its the only way to go to get it right