Traditionally sharpies had a feestanding rig. usually set well forward,almost on he bow and just a mainsail. with a massive boom. jibs and forestays were added for racing.
the hull should be flat bottomed, usually cross planked.
the name comes from them being long for thier width. mine is 5' wide,4' at the waterline and 31' long

Is that what you mean by a traditional sharpie?

im not trying to be a smartarse, but the term sharpie really changed over the years.
the big dinghies that are refered to as "lightweight sharpies" are basically a long skinny sloop rigged dinghy and we have come to think of them as "traditional"