Wanted: Marriner 55 hp Long shaft gearbox

[Moon rider]

Hi their I'm after a gearbox for Mariner 55 hp its a long shaft been looking for a little while if anyone has any ideas can you please let me know or if you know there is one for sale can you please let me know thank you

[seaquest1]

depending on year i think the
yamahas are the same
another option
mike