Django-registration vs registration registration for activated accounts

I need to implement a fairly simple registration process:

• The user fills out a registration request (form).
• The administrator is notified of the registration request. (Maybe)
• The administrator will activate the desired users from the django-admin interface.
• The user is notified of the activation of his account.

I read about the django-registration app .

From what I've read, this application seems to be used very often, but I'm not sure about its benefits.

So my question is, of the following options (I'm also open to other alternatives), which would be better in this case?

• Complete all registration from scratch.
• Extend one of the django registration components.
• Create a django registration backup from scratch.

In addition, the reasons supporting the selection, please.