I assume "2000" was a typo and you meant 1900?
@Ike85123 Parkers are a real collector gun. That tends to mean medium to high-grad guns in fine condition or better are extremely expensive. It also means old, tired guns that may or may not have hidden issues cost far more than a basic boxlock should. As I have noted on other threads, I would estimate half to two-thirds of the older SxS's I look at have issues that range from expensive to extremely expensive to make right. As others note, the majority of vintage guns can not be used with steel shot and many more should not be fed with anything heavier than 1 1/8 ounce loads regardless of chamber length.
Shooting a SxS well is an acquired skill. It takes years to become really proficient. You state that you have experience with a Red Label. A Beretta would be a logical step up from that gun. It would also be far more versatile than any vintage options out there today.