I'm not sure it's cost effective to load full charge 410 but I load subsonic 1/2oz loads for ratties in my back garden. With a moderator they're as quiet as the airgun.
I cut the old crimp off in my 3d printed cutter with an Exacto razor saw, size them in, of all things, an old Lee 45ACP which is exactly the right diameter the just load them with scoops and whatever wads I have around. I use any old powder I have around but be aware, 12bore type powder is too fast for a full load in 410. The pressure will quickly exceed safe levels for most 410 shotguns and some of mine are VERY old.
The roll crimper I got off ebay but although it was cheap and very good, it was made in Russia so it could be a problem at the mo. I printed some clamps which hold the case firmly when rolling the crimp in the pillar drill, but pliers work fine if you're careful.