Heres one that should work - It's actually from the Lil' Rascal, but same shape. size as needed.
Picture 2: Lil Rascal - REALLY small, amazingly fast and smooth on stock motor/gearing. Wind is no problem.
Picture 3 and 4: 40 size Rascal, Magnum .61 four stroke
Don't have the 110 or the 49" (YET)