Thanks to all the input here, I finally found the nerve to call in an order. I'm choosing Kibler to the exclusion of all other rifles, finished or kits. Jim's videos gave me the confidence I needed. So, I called. It was sort of a relief that they were closed today. I'm really scared of spending all that money on just me, because I'm certainly not anywhere close to wealthy.
One question I had for Jim maybe someone here can answer. The Colonial has the barrel length I want, but I'm wondering if caliber bears on the "across the flats" measurement. I mean would a .45 barrel have the same outside measurements as a .54? I'm all about long and skinny for the gun's overall appearance. I'd shun a 54 if it called for a fatter stock.
Anyway, the decision is made with by wife-of-53-year's blessing. Again, my thanks to all of you for all the help.