4 link Kit for 55-59 Chevy Truck

[56ChevyPu]

I have a '56 Chevy Truck SWB SS, and I lowered the rear by removing some leafs from the springs, the axle roll is really bad and would like to change everything over to a 4 link. I don’t want to spend a 1K bucks doing it. Can anyone recommend a pre fab’ed 4 link, that’s made as a drop in for this year truck. It’s original frame and springs, the axle is a 12 bolt GM works on existing leaf mounts. I might bag it later that’s why I don’t want stiffer springs and want the smooth ride. I have access to a welder and cutting tools so if it requires work, I’m all in I have more time than money. Thanks RRG.