Firebird

I have a 80 firebird. The guy I bought it from took out whatever engine was in it, and put in 300cu with some goodies. He did not replace the shocks or suspension on either end, and did not replace the rear The trans is 350 turbo, i think.

Can anyone tell me, or give me a idea what I should do with the shocks. What kind of rear should I get? I think the guy was trying to turn into a T/A or something. :confused: