theres a 3000gt at www.craigslist.org
with 75,000 miles on it for 7,000. It'd cost about that to put tha TT engine in ur eclipse. But if i were u i'd stick with the eclipse.
IMO 200-250 hp is good enough for me.
btw. with intake, headers, a cat, and an exhaust system there still is a chance of blowing your engine. I'd a rebuilt it or bought a new engine before all that. but thats me.