been using the search function for awhile now and havent found an answer yet. so i checked the local junkyard website to try and find /price a set of LC coils just put in 95 for year since thats in the middle of what im looking for. they list multiple spring heights.....should i just go with the tallest?

and 2nd. how tall of a balljoint spacer would be good for running LC coils in the rear. i ask height because a friend of mine has a cnc machine and is gonna make them for me so i have to tell him a height

thanks