historically speaking the Tulle and their lesser known St Etienne counterparts were designed as a more robust hunting musket/militia arm than the commercially produced "trade guns" that were initially crafted for trade to the NA. As usual in the economic chaos of French Canada some of the tulle-types wound up in NA hands and various trade guns were in the hands of french-canadian and Metis/mixed-blood civilian/militia.
In my opinion while the Tulle types were not as ornamental in appearance as most of the trade guns and they were built in gvmt. arsenals to a more military level of quality since they were intended to serve as a civilian hunting gun and as a militia/partizan/scout/ranger arm in wartime. they were the equivalent of a english purpose built light infantry fusil
trade guns, "fusil de traite" were a commercial product built for the native american market and reflected varying levels of value, some were door-buster-low end and some were built to as high or higher standards as the military arms since they were intended ad gifts/presentation pieces to influential NA leaders. this if course leads t a whole discussion of the philosophy and tactics of Francco-NativeAmerican economics.
Over the years I have built both types, from scratch in the pre-kit era, and a later TOTW type C kit (with some difficulty and kit problems to overcome) I'd study all three in some detail and do some serious thinking about your commitment ot the task and what your end purpose is before leaping onto the deep end of the pool
There are a number of good reference books, check for books by TM Hamilton on various trade guns and Russell Bouchard on the Tulle types. (My copies of the latter are older ones in french but they may have been redone in english translation.) In any case they are well illustrated. Track of the Wolf may carry them or of course there is Amazon
