The rocker gear will fit, but the manifolds may not,

depending on how bad you cooked it, the head on there now may still be fine with a light skim.

Have you fixed the cause of the overheating yet, that's probubly the first thing you want to do.

[EDIT] You can check the valves in the A14 head by sitting it on its side and filling the ports with water/wd40/metho/whatever and seeing if any leaks through. and put a straight-edge over the gasket face.