good information, some of this is new to me and advanced. I will start googling. I have a spare laptop that I could dedicate to this.
Or use a hardware wallet (like
Trezor) not only it's safer, but the need for only one paper backup is a really nice thing (the same applies to
Electrum). Before Trezor I used to use Electrum on an off-line laptop for signing and had a watch-only wallet on-line (although transfering transactions back and forth via USB was a bit tiring ;c)).