Yeah! Somebody newer than me!
Welcome 25 ought--yeah I had on of those once. MOF I handled a HighWall in that cal just this evening.
Best advice I've gotten in my flurry of scratching and digging for info is-find a club, go to a shoot, look at and handle (ask nicely) stuff that you like.
Then save the quarters (don't wash your car and eat beans and rice instead of take out for a while) until you can get to the "good stuff". It's just not that big of a step (dollar wise) from the better imports to the the plainer-yet more PC-domestic kits and even some assembled rifles.
Look at Petaconica, Sitting Fox, and Tennessee Valley Muzzleloading fer example.