I'm looking at picking up a 26" Starcraft Islander with a blown I/O motor. I'm thinking of getting rid of the I/O and putting an offshore bracket with an outboard on it. The boat will be used mostly in Puget Sound but 20-50 miles offshore as well for tuna fishing. The islander is aluminum and weighs in around 4000 lbs with motor. Figure 5ish with gas, ice, fish etc. The I/O at 200hp would max out around 35. I figure I'll want at least a 200 but probably as much as a 250. The question is 2 cycle direct injection vs 4 cycle. Arguments either way? Cost vs weight? Reliability is probably a difficult conversation. Thoughts?