'sticker, Probably the best all around boat to use for bowfishing is a flat bottom jon boat. It looks like you have a good handle on what you want to do.
My brother and I started out withhis 1648 and shot a lot of fish from it. A 1648 with a 25hp outboard and a 40# thrust or larger trolling motor will take you just about anywhere you want to go.

Bottom line, buy as much boat as you can afford.