what there is allready a supercharged 4.0?

Thats right shelby series 1's used a supercharged 4.0 aurora engine, that mother puts out 320 hp. I was amazed to find this but the question for you hardcore moders is did they make extra superchargers that you could mod for your own use. The series 1 didnt' sell real well and they ended up ordering parts for cars that they never sold. Recent articles say that people are interested in the series 1 as a kit car and some are being sold that way but where did the engines go i don't know. someone should look into this. it is a longshot that i don't have time or money to persue, but i thought it was interesting. Does anyone know more about this than I have said?