One of the bolt holes doesn't match up if memory serves. I think you can fab an L shaped bracket or just leave the one out.

Up to him if he wants to run an auto. I know there are some upgrades and mods out there for the old 413 auto trans. I would swap in a stick shift, I think it would be a lot more fun than an auto. Might have to get a bit creative with the shift cables to not end up with a backwards shift pattern!