Excuse my ignorance here, but are the gas tank, hood and Kohler engine from a Versa Matic the same as the older hood, gas tank and engine on the Ride-a-Matic (the older, rounded hood model)? Are they interchangeable? If they are interchangeable, what other parts are interchangeable between the two machines? I just always wondered because the hoods, gas tanks and Kohler engines of the two machines look the same in the pictures I've seen. I realize that there were different engine offerings as at least one of the types of Versa Matics has the breather poking through the hood. Anyway, just curious. I wondered how many parts from one could be used for the other, if any. Thanks in advance.