One good thing about getting a car that was designed from the manufacturer with a turbo is you know that the car can handle it. You don't have to worry about anything breaking because of a turbo
And your insurance company might not complain about it. I don't know how your insurance is where you live. But some places require you to tell them about mods or they won't cover you if you get in an accident.
I also remember reading the august or july edition Turbo magazine and some guy asked about turboing Eclipses. He said something about getting one with a turbo instead of installing a turbo on a non-turbo one. I think the main thing he worried about was blowing piston rings or something. I can private message you the article if you'd like
EDIT: i'll let turbo2nr answer the question about if thats good for you. Since he'll probably kick my ass if i tried too