I want a new motor for my 13 ft dell quay (its the british version of the 13 ft boston whaler) with the steering console on the side. I want a motor in the 25hp to 40hp range. weight is the issue with passengers (crew), motor etc all in the back. 2 strokes are lighter right? or could i get a smaller horsepower 4 stroke? i would like to have a 4 stroke but i want whats best for me and the boat. ya'lls advice would be appreciated thanks in advance for your time and thoughts