Donald, one thing about an "armstrong motor"; they always start!
I have to admit your pics got me excited. A friend just built a 19" dory (square back), and I traded some decoys for it. Planning on rigging it this summer. How wide is yours that you can use oars and how long are the oars? The boat I picked up is 7 1/2 feet with high sides, and I thought it was to big to row (unless you had an oarsman on each side and a guy beating a drum!).
Mike