Thanks everyone. As much as it pains me, I will walk away from this and put it down to a very expensive experience.
What about bitaddress.org as a paper wallet generator. This time, of course, I will generate the wallet offline. Is this still asking for trouble or should I stick to hardware like ledger?
If you are looking for a web-based wallet generator, there is another option worth considering – a deterministic one. Take a look at
https://iancoleman.io/bip39/. When using these tools, it is always a good idea to clone them and run them from your hard drive while staying completely offline for that extra layer of security.