Any way to import images without a live url prestashop?

Yes it is possible. You just have to put the images in a directory that is accessible on any web site. And in the URL field in the plugin settings, you put the parent URL of this directory. This works with the HTTP method.
If you want to use the FTP method, you must put the images on a FTP server.
And if you want to use the file system method, you must put the images on the same server as WordPress.

Thank you!
I am still having troubles with all methods though.

So, say my URL to an example image is https://mydomain.com/my_backup_dir/img/p/1/0/0/100.jpg

I tried using https://mydomain.com/my_backup_dir/ but it didn’t work (media connection failed).
Wordpress is in https://mydomain.com/wp/, would it help if I move the images there or is it something else?

Never mind, I got the ftp method to work, I was confused by the fact it was still asking the URL I think.
Thanks!

Great. Thank you for your feedback.