Subdomain Registration Script

We have been providing SLD domains and hosting for a number of years via 4up.eu and y2z.eu using a CO.NR script however a recent data loss has lead to the need to get set back up. Users need to be able to search for and register domains, set up DNS etc, and the server automatically propagate the DNS for them. This does not have to be a fresh build solution if you have a functional script, we will pay for installation and customization.