I won't have the Argo for 2 or 3 months but from the pic. I have of the motor mount looks to e very high from where the water line would be. I agree that most small older outboards which mine is are short shaft. I'm thinking that I can just lower the entire mount to make it work. As long as the tiller handle clears the back of the body it should work. Someone ask about a 20 to 30 hp motor under 100lbs. I don't think there are any in that hp range that are under 125lbs. at best.
Tom.
I have a 6 horse johnson short shaft mounted on a home made bracket that slides in to the trailer hitch mount but also has an angle iron that sits on top of the body seam with 2 3/8 inch bolts through the body seam to support the top of the mount . the motor sits low and will only cavitate if i am trying to break a speed record. I also use an electric trolling motor that I plug in to the winch electrical conector ( recomend Idling the argo to charge the batery for long hauls). I prefer the trolling motor for most adventures.
steve.