ilucas,
I would have to second getting the one that drops down 15 inchs.On my other boat I mounted my bracket a little to high.When I was in rough water and the motor was all the way down on the bracket the motor would come out of the water.but in clam waters it ran great I also used an easy steer that works great.It looks like you have a heavy of enough boat so you should have no problem but It's just a thought.Good luck.