i have a old not sure what year evinrude it says fisherman on the side of it there are 2 fuel lines to the tank i need a tank but the new ones i have seen all have just 1 line
Do you eBay? They're on there all the time. Parts for them are still available. The connector is also available but in the $60 ballpark last I checked. Make sure that's there. Even if it leaks, replacement o-rings are rather cheap.
They are available. It is not a common fitting anymore. You might have to fabricte your own hoses and fittings and all the parts are available. Try iboats first or web search for portable fuel tanks.