5.7 supercharger??????????

[gumbys10]

Does anyone have any idea where I could find a new or complete used supercharger kit for the vortec 5.7,as in my 97 silverado, or anywhere that might still have stock in the old vortec kit #'s 4GM218-050SQ or 4GM218-058SQ as I have my inceredibly mint truck of my dreams, and am customizing it a bit and would love to get a charger. But I am having a difficult time finding anyone that still makes a kit for it. As the truck has 50,000kms on it and I do not really want to swap a lsx into it.