Jon very good post. Many who are new to reloading have little understanding of these hand priming devices. They are the number one danger on the loading bench. I have seen the results of a hand held primer blow out. I isn't pretty!! They also lack the positive seating needed for rifle ammunition.
Do those sets come with the Lee Auto Disc powder measure? That's what mine came with. Great for pistol but they won't drop enough powder for the calibers you want to reload. You'll probably want a Hornady or RCBS powder measure. $70-$100 for a decent one. Also that scale is cumbersome to use. Probably want to upgrade that as well.
Only if you buy the double disc kit. All five of my Auto Disc powder measures are single disc. I would have to buy kits. I load pistol with the Lee and through dies and my rifle powders go through bench mounted Hornady powder measures.
Kits are never complete. I have never seen a reloading kit with calipers in it for example. Read the Lyman manual or ABCs of Reloading a few times and you will figure out what you need. Lee scales are difficult to use and not recommended. Don't buy a kit.