Looks like it's extra to me....so $900 for the boat and engine and another $550 for the trailer make it $1450 total. Kinda high for a boat & engine & trailer that year...IMHO.
Oh, I agree $1450 is not such a great deal. I guess I didn't read it very well. I thought 9 bills was for the whole she-bang. I'm a little partial to the motor. On my first boat I had the same year/model - 1975 Evinrude 70hp. It was the best motor I've ever had so I wouldn't hesitate to run another one.