Fuse box upgrade 1965 Valiant V200

I'm trying to move away from the stock bullet fuse box in Valiant to a newer style blade box. I've gotten a blade box out of a scrap yard 1979 Dodge Magnum. I have no idea how the hell to do this or it'll even work. Also I can't find the Magum's wiring diagram.

Any help would be appreciated.

First time poster lifetime electrical idiot.