Yeah, the style you'd be looking for would be the JDM conversion.

If you wanted to put G2 headlights on a G3 Integra you would need to do custom work on the bumper, radiator support, fenders and hood, etc.

You'd be better off going with a JDM Integra front end (commonly called the ITR conversion, even when all Integra's in Japan look like that minus a few minor details).