in your shoes id go with the 04 cobra or a gto. seriously, the ls2...are you kidding me, that thing has to be sick with some mods. i will try to never get rid of my gt but id like a gto sitting next to it. of course the duel exhaust one.
GTO: sure the exterior isnt so great, but all black with black rims with polished lip. low key and bad ass engine. awsome interior too.
Cobra: looks like your car on the outside, looks like your car on the inside, awsome starting ground for modding. super sick once pullied down.
i dont really like the ner body style gt's. yea ive seen a couple that looked good if dont right but its not easy to accomplish. too much money for what it is.
the other two are worth their price!