I am far from an authority on these guns but have done quite a bit of digging in preperation of my next project... I think The Rifle Shoppe probably has the closest stuff but they are very spendy and have a long wait. you can get parts from TOW to make a gun with a 44" barrel and a Davis lock that is a bit small but clpse and only needs some minor cosmetic modifications to look right, some feel the L&R trade lock is a good one but I see the lockplate as being to flat this, is subject to opinon I based mine on comparing the profiles of as many pics of Tulle locks thatI could find. I don't know of any pre-made gun that is real close, if one accepts the L&R as ok that will give a little more to chose from I suspect, the name "Tulle" in one of its forms should be on the lockplate as this is about the only thing that will identify the gun as comming from that armory(town,When you read the book you have comming you can compare what is out there and the "story" they tell about how theirs is the most correct and get a pretty good idea of which ones know anything about these guns, I plan on useing TOW parts and cleaning up the lock when I get to building my next gun, I think their iron furniture set is circa 1730 if I recall, there were subtle changes in the furniture during the first halh of the 18th century. most of the options available are based on surviving Canadian guns, some gun studentsfeel that the lower Mississippi guns may have been brass mounted for better wear. The Tulle came as a plain gun or as a fine gun the stock shape may have been the extreme "cows foot" or the straiter type reflected by the so called C and D guns. Enjoy the read when your book comes and your gun when you find one.