36 nb if you want a bigger boat: they are proven too.
I have heard nb's are not good stick boats. The guy I bought my nb from was selling it to build a holland 32 to use as a stick boat. He had a tower put on the nb but said the boat made to much commotion going through the water. I ended up selling the tower to him for the holland. I've never done any harpooning though so take it for what it's worth. He did tell me the 32 holland was probably the best stick boat out there. He was doing one with a v drive and a 300ish cummins.