You cannot use other class' gear, as in tier sets etc.
Personally I'm thinking T6 + cursed vision + shard of azzinoth (OH) and something like Calamity's Grasp or the fist weapons from TK (provided that there's any decent fist weapons to use in T13, otherwise I'm not really sure what I'll use for MH... But there has to be some cool swords / maces / axes out there so I'm sure it'll be fine