I am pleased to hear that he seems to be less itchy and has some fur growing back, that is superb news. And he wants for nothing now, he is a lucky cat
OH it sounds like he's well on the road to recovery - it could be that it wasn't mites. I see cats rip out their own fur when they're allergic to fleas. But that's besides the point - he's a very lucky boy (even if he looks a little funny growing his fur back!!) and good on you for giving him that little bit extra help along his way!