Matt and I do sell kits of all of the styles. Sorry the site isn't clear about this. It is going to be updated soon.
On our kits, the barrel and ramrod channels are inlet 100%, lock and triggers about 90%, dovetails cut for sights, breechplug installed and tang inlet, butt completely shaped, forarm left a little heavy on top, vent liner or drum installed, drilled and tapped for rear/ center lock bolt, and predrilled on the octagon barrels for stake type tennons (oct- round use solder tennon on the round). We include a tang bolt or wood screw for the breech, so that you have a choice.
Hope this helps to clear up some of my lack of web info.
Sorry, Slash