Barney-style 83/4 build

I don't have a clue what ujoints I have right now. The engine and trans was out of a 77 Córdoba from what I was told and the rear was from a 71 dart I believe. For driveshafts I have the one currently in the car, which is a /6, and an extra that I think is from the same Córdoba but have no way of knowing