Put an ad or something on Craigslist if you don't want to take it to a marina. I did that in Great Falls and had numerous responses. I talked to a few of them and picked the one I thought would do me right. I needed a tune up on a 1960 Johnson 5.5 hp. That was three years ago........next week I'm taking my motor back to him for more work, need seals put in it.
Just a thought. A lot less expensive than dealer's....