fireballs gs400

thinking about a ls400/430. I don't know which one i will buy or anything. just letting the thought pass through my mind. I found some older ls's that are in good shape. a 1990 gray on tan model and a 1992 black on gray i believe. I am also looking at taking the plunge and maybe getting a newer 430. i know it would be a much much sweeter ride, but much more cash. I would prob fix it up some whatever i purchased. any ideas or thoughts. also looking into a sc430, supratt, i own a cobra mustang and a gs400. just any comments would be cool...btw cobra is for sale thanks bryan roberts