Not sure we know what the Kibler smoothbore kit will be based on. I’ve heard rumors but nothing definitive.
Few smoothbores were being made in the Carolinas in the 1700s. That leaves you with choices among imported guns, based on your social class and income. Bottom of the barrel was the Carolina gun. Cheapest gun available with the poorest wood, lock, and furniture. It would be stocked in beech or low grade European walnut. Next up would be a lower grade English fowler like the Wilson fowler pages 53-56 in Of Sorts for Provincials. It has a cast guard and buttplate, but otherwise is much like a type G or Carolina gun. A person of wealth and taste would often have a proper English flowing piece. Anyone who had to serve in the militia might possibly have a commercial musket similar to a Brown Bess but these might be provided by the militia and not be privately owned.
So far as I know, no local smoothbores were being stocked up in American hardwoods. Guns currently offered and sold as “English” or “French fusils” stocked in maple or cherry confuse the heck out of me.