78 F-150 351m C6 4x4. My truck was originally np435. Owner before me swapped it to C6 from Np435. I was planning on swapping it back. Where is a good place to get a NP435 that is already rebuilt with bellhousing, shifter stick, and mount for np205. Where is a good reliable source?

 

Not sure about finding a complete reman. Most likely a junkyard will be the best bet. They are getting harder to come by.