Just a note Quickie, with rods quite often there is a modern equivalent, from the ATV,Jet Ski, Snowmobile worlds just a matter of measuring and comparing dimensions.
Haven't bought a genuine gasket in 10 years got heaps of copper sheet here and I go to a shop to pick up gasket paper in various thickness.Your gasket set is just a set of cheapie wad punches and scissor snips away.