any one have a trolling motor on their boat, I'm thinking about one of those cheaper ones at Wally World, 40 lbs for under $200, 45 lbs for under $300, 55lbs cost quite a bit more. Is 40 lbs enough for tidal waters in a 14 McKee?

I don't know much about trolling motors, but McKees have little draft and windage compared to most other boats so I would think a smaller one might work.