Probably about the easiest cam question there is. You could go with a stock cam, no problem.

Check out crane grind # H-260-2 that's actually a little weaker than stock, and will have a tremendous bottom end. 112 LSA so it'll have a good idle and lots of vacuum.

Personally I'd go with a modern/stock equivalent grind, so you could at least wind up and be satisfied if you wanted to.

Seriously, any stock replacement came or the so-called RV cams will work great for what you want.