So I'm putting a new work space in at my house in the next few weeks and already my mind is inching towards things to do at the new workbench while hiding from the family. Coincidentally I've also been interested in picking up a muzzleloader for quite some time. Now I am far from what one would call a master craftsman; I am of average mechanical inclination and a novice woodworker. That being said, I can follow instructions, don't f up TOO much when taking my time, and keep my tools sharp and clean.
Now, say a person was interested in building a generic, simple long rifle that may have been bringing in meat and defending a home in the last third of the 18th century in Pennsylvania. Cherry stock, zero (or very simple) engraving, and likely no patch box (I'm thinking the Rev Era equivalent of the old Remington, Savage, or Winchester in the safe that's been stocking the freezer for forty years)... a PRETTY working flintlock. How challenging would a Kibler Colonial kit be?