Hi Floyd, this is Floyd here.
I've now been to the boat and measured it for you. It's about 15 inches from the top of the mounting to the bottom of the hull so the little short shaft Johnson you bought on Ebay should just about be alright, as it's 17 inches to the top of the cavitation plate.
Thanks Floyd.
That's OK Floyd.
Any other questions?
Well I would ask what thickness the rivets are at the foot of the Proctor mast but I'll probably be dead before anyone replies.
OK, Cheers Floyd.