4.6 3v Control pack

Okay guys im having a real hard time finding a 4.6 3v control pack for a swap im doing would anyone be able to help me find one or if i can use the original harness from the mustang and ecu would i be able too? I have a donor car the engine is going into a hot rod im building please let me know thank you !
 
Pretty sure the 3V control pack has been out of production for quite some time. I'm sure the original harness can be made to work but you're going to have a bunch of extra stuff on it that you won't need. I don't really know the particulars of that though, unfortunately.