"Runabout" is generally the closest fit. (I'm American and have no idea exactly what that is either, not something with tubes typically). I guess if your tubes are out of the water on plane its probably a decent fit despite haveing the weight and probably deadrise all wrong. But if you are like me with substantial portions of the tubes in the water then its less and less applicable.
I have had good luck sizing props with Yamaha's performance bulletins. Usually you can find something close weight, size, power-wise.
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