You'll need these;

 

Twin.. from the looks of it he wanted to use the S4 manifolds. and use to gpop ko4 hybrid turbos..


psh.... i use those as door stops

 

it's kinda been done if you don't consider this an engine swap. some company swapped the 2.8 crank with a 3.0 and then twin turboed it. i forgot wut turbos but it was over 600whp. so ya it's totally possible. any chance you'll take a crack at it since you got all the tools you need at your shop?