drivers look fine and as far as putters, the aviars should be plenty understable for anhyzers.
Star Roc, New dx roc, and Gator overlap for overstable midrange duties. Though the new dx roc isnt as overstable, it is overstable enough for midrange shots. if more overstability is a must, a KC Roc is great. Or if he is intent on the star roc, then it can stay i guess
Classic Roc is now OOP in champ plastic so getting it will be tough. Also, if there are three rocs that are beat, one should be straight and one should be flippy and the other more stable. These should cover all the lines that the Classic Roc and Shark can do (and rocs fight wind better).
So realistically, the three beat rocs and maybe (a big maybe) a KC/Star Roc are in order.