Buy two domains at least. One for the actual email and one for redirection email addresses with something like addy.io .

In the UK, open personal details can be resisted from whois listings under data protection, but you can use a mailbox or office address to make that a redirect.

I use a control domain to control all my other customer domains and I separate DNS, domain hosting, email, and websites so no-one has too much control. That was a painful lesson to learn.