Re Bottom Paint
Bottom paint will make it harder to sell a small boat. I decided to sell my 1996 18' Hewes Redfisher this past winter and had several potential buyers reject the boat because the bottom was painted.
Eventually I sold the boat to a buyer from Maryland and for a decent price. But I could have sold the boat sooner if the bottom had been unpainted.
If you are only considering bottom paint for its camoflage value I would discourage you from doing it: first, because it will hurt resale and second, IMHO I don't think it will make too much differance to the fish. I have read a number of articles on that issue and the pros and cons are about equal.
Try adding the trolling motor. They do work very well. I have a guide at the next slip in my marina and he uses a trolling motor on a 22' skiff to stalk stripers on the flats. He is very successful. It is also great for making adjustments when he is drifting.
Hope these comments help.