72 duster resto
if that cam was in really good shape when it was removed (i can't tell from the pics), and the lifters were labeled/placed/stored so that you can match them all back to their original lobes, i *might* take a chance.
but i think single pattern old school grinds are butt, so i wouldn't risk the couple of hundy on a question mark, especially with fresh cam bearings on a fresh build.
in for a penny, in for a pound amigo. don't cheap out now.