Welcome to the forum. I lived in Pembroke for 3 years as wee tyke and currently have 2 of my best friends who live just off Hwy 17 near the B-Line road with their 4 kids.
If you are looking at an ETEC 50, I'd also suggest looking at a Suzuki DF50 which is about 13lbs lighter. From what I've read, the newer 4 strokes by Suzuki & Honda have really narrowed the performance gap.
Suzuki Marine - Product Lines - Outboard Motors - Products - DF50 - 2012 - DF50A
If fuel consumption is not a major factor in your requirements, then a carbureted 2 stroke yamaha or Tohatsu would be a great engine.
I have a mid-90s Yamaha 40 hp 2 stroke that I've put through all sorts of harsh use and it just keeps going. It is a thirsty one though, and I can easily go through 80-100 liters on a 3 day river or channel trip.