Performance Suspension poly kit

I have been pricing front end parts. I contacted Performance Suspension and they have a poly kit for my application for $290. I asked if the ball joints and other parts are american made. The rep stated that he gets his stuff from Federal Mogul and cannot guarentee that all of the parts are american made. Should I trust the quality or just go through local supply house and buy Moog, Delco and other trusted names. Any input is greatly appreciated.