(PLB): Thanks. Tried scaling images, but sometimes there is no info on the barrel OD, and exactly what is the barrel length: muzzle to breechplug face, or muzzle to tang, or ....? Maybe none of the matters, so I've been trying to eyeball geometry that seems to me to be pleasant.
Thanks for the reminder about the plans in "Recreating the ..." I have a copy, plans intact, and just noticed the drawings for a KY pistol at the bottom!
I have "Kentucky Rifles and Pistols" which has nice B&W images and some from below which show the trigger guard and the slender forends. Great for showing lock side views, sideplates, and sights, but sadly lacking in cross sections.
Also have "The English Pistol," Ron Beebe, Golden Age Arms, 1980, which has images and info on dimensions for swamped barrels from the 18th & early 19th century. I would think these English pistol had some influence on the KY versions, as they share many features.
Maybe there is enough variability from one gun maker to another that most anything I create, within reason, is close enough to any/some original.