Please be aware that DirectAdmin does NOT allow re-selling of Licenses.
You will have to buy a license from them directly so that you can change you IP address when you decide to move to a different web hosting provider.
I know original license is expensive and if you want to own a VPS or dedicated server for your own why you don't go with managed VPS or dedicated server, which everything your web hosting provider will care for you. You only care on managing your websites.
Just my 0.2 cents!