i think i'm about to purchase a 16 foot flatbottom john boat. it's got the bench seats going across the boat, my question is, if i were to remove one of them to make more room, would it cause any structural damage to the boat? i'm not sure if they work as support too. like i said, only one of the benches in the middle of the boat and IF i shouldn't have any problems, how should i go about it? i'm sure they're riveted into the side of the boat.