all u need is a couple of $5 oil restrictors (chilton can make them up) and the back welsche plug in the head punched out, a pipe fabd up, pressed & screwed into place, a -10 fitting welded onto ur sump, and a piece of aeroquip oil hose and ur done!
i got my head drain pipe from r33_racer, pm him to see if he can make you one
the traders on here can supply n1 pumps for ~$360