changing leaf rear to coil

[project1971]

OK i haven't been on here in a long LONG time and my truck is scattered. My biggest thing i'm running into looking for parts to put it back together is my father ordered the truck with leaf rear. I want to lower it and I know i can get new lowering springs or have mine dearched but there is so much more stuff for the coil spring rears. Would i benifit any to convert to coil rear? I'm a poor man.... mechanic.... and a small budget. Its just going to be a drivers nothing fancy just something my wife and i to enjoy.