We're happy to do that for any clients via a ticket. We cannot guarantee it for everyone since it takes time, but we are certainly happy to do it.
There's a ticket system? When hitting the ordering page you have to tick a box that says the services has no support.
There's no support for a reason. These are very low cost and therefore we're not willing to commit to providing support. We will help when we have time and where we can and I'd be happy to either setup IPv6 or reverse proxy a domain for a client if and when I have time. Anyway tickets can be submitted here: https://definedcodehosting.com/client/submitticket.php?step=...
Using something like hipache (or hipache-nginx or even some service written internally) you could probably cut down on your human interaction time.
Combine that with SNI hosting (unfortunately we would have to give you the keys for it)