Avada tests before golive - License

Hi, I am currently running my website with a different Wordpress Theme and I want to switch Avada. In addition I want a complete make over of my website. To finalize my new website I would like to create the complete website on my local WAMP host. Once I am finished I will take a backup and recover this on my production system. So I will have just a minimum downtime of my website.

Here is my question:
Sure I want to buy the license, but can I use the Licensekey on my localsystem first and will it work on my production system then? I noticed that Avada will probably create a hostid upfront before the key gets generated.

Thanks for any adivce.