Rolling yer own is not something everyone can do. In fact, too few will not be able to accomplish that task and to more than most is something beyond consideration.
A Kibler kit will absolutely require both tools and smarts - been there, have both of those qualities, and know for sure most will struggle to get the job done.
What's sorely needed is an offshore kit (or ready assembled gun) made here in the States that takes a screwdriver to assemble, not build. It needs to have a sensible flat breech plug, be a half stock for ease of assembly and maintenance, and offered in cap and flint. As to the bore, that's an iffy thing - maybe just a .50 rifle to keep the production costs down. This is not a Herculean task and should fair trade at a profitable $600. THAT would be the perfect "starter" sidelock that's viable, reliable, and cost effective for both manufacturer and consumer and put a dent in offshore gun sales. NO, it's not a period correct firearm, it's a mish-mosh that kinda sorta looks okay at the range, rondy, or campfire gathering. This is not about being historical, it's about getting a Good gun in the hands of those wanting to stick a toe in the trad muzzleloader waters. It's a gun that would be worthy to have even after moving on to a custom sidelock muzzleloader. At least I can dream.