Tandem/solo for mostly diving, some fishing

Hey, I'd like to buy a tandem that can mostly be used well solo. Thinking I'll be spearfishing solo 90% of the time, spearfishing with one of my daughters 5% of time, and hopefully doing some salmon fishing in August too.

Sounds like fishflogger and I might be looking for similar boats. Please let know what you've got. I'm ready to buy immediately.