RE: Can't find a spinner to fit...
Try Maxx Products. I've got an Aluminum spinner on my .72. I think they have them in 1/4" increments (at least I know they have a 2.25") You will have to order the adapter nut separately and you may have to enlarge the cut-outs for the wider blades, but for the price they are decent spinners and are pre-polished.