Wahh-elll, I have very limited experience with the kits sold by Cabelas, Redhead or other large outfits.
I tend to buy from the smaller guys and you can get anything from a $200 kit that will give your hours of pleasure to a gun that Daniel Boone will be comfortable with. It all depends on what you want to do and your level of skill.
The more skilled you become, the more primitive your kit becomes. If you want something that is authentic (but requires some skill), about the best kits I've come across are Jim Chamber's kits. Well fitted but require some inletting. Parts are quality and if you have trouble (defective, Jim is unhesitant to replace them). However, Jim is only one of many and my first was from The Log Cabin Shop and the second from Golden Age Arms. Like I mentioned before, it all depends on your skill level and what you want.