89 dime with bel air fins? help

i wana take the fins off of a 57 chevy bel air and mount the fins over my bed. i wana slide the fins over my bed and weld it in place and use bondo to remold the body to make it flush and then i wana use the tailights to the bullet style and fit them into a roll pan and make it flush with the body im just lookin for maybe a few pointers from some of the fabricators in here  

that would be sweet in my opinion, you might have to modify the way the upper portion swoops down near the door on the car, to better flow with the squareness of the dime. i would also recommend a butt joint where the panels meet, instead of a lap joint. it would hold up better in the long run, and shouldn't require as much bondo.  

yeah your right im also thinkin about tryin to get my front fenders a little more rounded like fins so it flows from the front to the back of the car  

what do you think of using a round headlight? i think every car in the fifties used them, so they might go well with the fins. also, the old cars hoods were much narrower than the car itself. maybe you could widen the tops of the fenders, maybe even wider in the front and narrower in the rear, and cut the hood to fit them. i think that would look sweet.  

yeah im thinking about just using old jeep headlights cuz there circular and i want the old skool look and i was guna raise the fenders and widen them a little when i round them off to fit the shape of the body