Call Midwest and talk to Jared. He will set you up. I wouldn't trust. Anybody who is selling a 6.4 longblock or shortblock "cheap". You should also ask him the price of a 6.7 motor that will make you mad a little bit!
Have a s476/87 .90 t4 forced inductions unit. Just came back from being freshened up and new compressor wheel from them. Has no run time since. 1200 shipped.