bob beatme to it.
just get a larger pipe nipple to onnect it over..
I have seen some lawnmower mufflers similar tot he pancake that the G had originally. I got one of the newer repop larger pancakes.. didn't like it and made a stack.
I have also seen breather units for air compressors that were closer looking.
browse a small engine parts counter for ideas.. or get the longer close nipple..