There are many levels of "legal" anymore. Many people feel if it has a title and registration its legal which just isn't the case. Georgia is very lax on vehicle registration and you can "legalize" just about anything you want but its still isn't truly legal. You can register it as a kit car or vin swap it which are the two easiest ways but the least legal methods. If you keep the car in Ga just legalize it as a kit or vin swap it and you shouldn't have any problems. There are ways to legalize the car for all 50 states but I doubt you have the funds to do that, nor is it worthwile for most cars.
RYan