my father in law has a 2 door Stratus RT (same dimensions as a 3G Eclipse)...the cabin looks a lot bigger than our 2Gs. I'm sure you'd have a bunch of fitment issues.

If you have the time and money, I'm sure it's possible and it would look sick as hell

edit: i was really bored so I looked up the interior dimensions of the two cars... looks like the 3G got bigger about an inch or so all around (headroom, leg room and etc.) the wheel base also went up 2 inches.