I have a Lund 1993 Pro Angler 1700 tiller rated for 60 hp. It has a 40 hp 1994 Johnson 2 stroke tiller on it. Would it be ok to mount a 114 lb Tohatsu 25 hp 2 stroke along side as a back-up or do you think that would be too much weight on the transom?? I guess that's no heavier than a 10 hp...