There's one on ebay `````````` now. I really like them because they are rear induction and rear exhaust, makes for a neat installation.
I've got three so I bought some aluminum to make motor mounts out of, I have extra so if you need a motor mount I could make you one for $10. I'm not in the business, you just have to buy more stock than you need, they don't sell 3 inch pieces.

I have 2 and 3 inch stand off, I made a mount for my plane using the three inch which gives you plenty of clearance for the muffler. I'm now putting my second Ryobi into a BalsaNova, for this one I'm using a 2 inch stand off which clears the muffler, but not the muffler's mounting bolt's heads, so I'm either going to just relieve the firewall where the boltheads are or make an adapter to use a $3 lawn mowwer muffler.
Moderator removed reference number to item on Ebay . . .
sorry, my bad.[&:]