I had a 18' Sangstercraft for many years, and really enjoyed it. I fished all over the west coast of Van Isle with it, as well as the Strait. It handled more weather than I probably should have thrown it into, but the boat never let me down.
The mercruiser inboard on the other hand let me down very very often. I brought a complete tool kit with me everywhere I went.
Not sure if Sangster and Sangstercraft are the same, but mine said Sangstercraft. the cursive S looked like a G so we often called it the Gangstercraft