150 acres? I'd scrap the motor idea, and go with a two-seat yak, or maybe a paddle-boat. Canoes are OK, but too heavy and slow. A paddle-boat is painfully slow, but you can pedal and fish at the same time. I have a KL Industries 4-seater paddleboat that I use for bowfishing, and diving (usually for mussels). It is a stable work platform.