I'm one who thinks 9' step beds are unattractive, and a dually with singles would make it more so, as well as not being any easier to get around or handle - with a 1 ton it's the length, springing and gearing that make it handle like a truck in traffic, rather than a car .... a dually pickup could be interesting, but a 1 ton flat deck look good, you can do some real nice detailing with stake sides
Bill