How to handle www.domains and plain domains?

[JuergenAuer]

@gmgj

Create 14 certificates and (maximum 87 URLs per cert gets me to 600 domains)

You can. But it's possible that you create one certificate per main domain (with example.com and www.example.com). So if you remove a domain name, the domain name isn't used in another certificate.

@gmgj

Is there a maximum Number of Certs per_ip address?

I don't know, but I don't think.