Bushings and shock upgrades for 74 Dart Sport?

I'm in the process of upgrading to disc front brakes and while I have it torn down I'd like to replace the bushings and shocks all the way around. I'm wanting to stay under $400 on it. I've been looking at the energy suspension bushing kit for it. Does it come with everything I need? What kit would be better for the money? What about shocks? Id like to have a stiffer shock to make it handle better but still ride good. Its a DD so I can't get too wild. Thanks for the help guys.