I am looking to buy an aluminum "row-boat" kind of thing. Maybe one that can hold a 15 H.P. engine. I see many on Craigslist that would work. However, they don't have steering consoles. I have done research on-line and have found consoles that I think you somehow bolt onto the floor. Usually, they are for inflatables. How would I bolt something to the floor and not make a hole thru the hull???