serpentine OEM System for '65 barracuda?

Will V-8 Magnum accessories not bolt up? I have seen photos of the Magnum timing cover and it looks like the same bolt pattern. You may need that since it has vanes that match the Magnum water pump rotation.

One question is why go serpentine? Besides the effort, it may decrease reliability. The main advantage is the shiny bling if you use some after-market kits. Many cars have problems with the serpentine belt coming off. The belt is very sensitive to mis-alignment, compared to V-belts. Losing one non-critical accessory (p.s. pump pulley in my case) can leave you stranded.