I have Sold Alwled, Weld-craft ,Sea Ark aluminum boats for years, If you get the floors and sides, they are not noisy with the floors and sides, the foam keeps the noise down. Rigged proper, not using the boat as a ground. No Carpet on the trailer, it will have salt on the bunks and cause holes!!! only Bunk slicks the boat sits on, Stops all the corrosion, on the bottom, The Gator Hyde non-skid on the floor, helps keep it quieter also and the Paint last and not rub off. Do not get a aluminum boat with the vinyl floors, that will hold water and cause corrosion.
Needs a few up grades to make it stronger, Heavy duty rub rail, Extra knee brace in the transom, Get the Float pontoons, on the back will add 2 1/2 ft to the boat.
They are lighter, float shallow, a 115 will push a 21 ft. boat around 40+ mph. with the 4 strokes, and only need 25 gal fuel tanks to run all day. Do not over power, the 150's only pushed the same boat a few miles faster and more weight , burns more fuel. The right prop is the trick. Never screw a transducer to the hull! have a plate welded, to hull and screws to it. Get a .100 ga Alwelded boat. I have customers still running Alweld I sold over 15 years ago. Some Sea arks are .125 but screw the decks down, not so good. All the boat i sold were custom ordered. for what i knew would hold up. And i Custom Rigged them, getting then with a bare console, and using electrical that was made for salt water, Most prerigged boats are set up for fresh water. I'm not ordering any more new boats and only have 3 left to sell right now, I do have a 20 ft VEE with a suzuki 115 tunnel, pontoons, J.P Hy Steering, rear live well and Deck i need to Finnish rigging on a Coastline tandem trailer.
Do some research on the boat first!!! before buying and they can Last, ride good, run shallow. Sonny