So the broken pool is kinda stupid and you shouldn't do it, you will be running without parity the whole time but if you want to risk it it does work.
Or... If you have the drives and space, you can combine a bunch of smaller drives with mdadm (assuming Linux but freebsd has geom I think) and then use that as your third drive, then once everything is copied do a zpool replace. That way you keep full parity the whole time.
Edit: latest version of zfs supports raidz expansion. So you could create a 2 drive raidz1 then copy everything over then expand it. You will still be running your source disk without parity but at least the destination would be safe.
You just run 220 from the panel to it. Almost every US house has 220 outlets for the dryer and stove anyhow. All you're doing is using a different shaped plug, and like, wires are wires, they fit into a euro plug the same as they fit into a NEMA plug.
My friends just put a euro style 220 outlet on their counter and ordered a kettle online. Since they were building the house new it was basically no different than buying a 110v kettle.
You're very.... Combative. I don't want argue this, mostly because I know arguing will get nowhere. I used to think like this and if you're genuinely interested there are tons of resources online but mostly just get out of your shell, learn other cultures and worldviews. Not just learn them but befriend people who genuinely view the world completely differently than you. I know from personal experience that just getting into a random argument with a stranger online will just waste both of our time.
So from what I've heard at least some of those are just fan pages that just link to the official site.