Time for my LS swap K5 to have AC. Since I'm going to replace all components I want to know if I should stay with the R4 setup or go Sanden? Either way I need to buy a new mounting bracket to fit the 6.0. With the R4 all parts are easily purchased. Basically order everything for a squarebody serpentine system. Assuming the Sanden will require a custom hose but may be able to use all the other parts minus the compressor. Thoughts?