Control panel for Linux (CentOS 6.x) from scratch

I need to have the core of a new Linux-based (for now) control panel implemented. It is to be run on RHEL/CentOS 6.5 and needs to have support for the following functionality: - Billing (hosting+VPS activation/deactivation depending on payment) - System tools/daemons support capability through plug-ins - Application installation (and possibly configuration) capability through plug-ins - Monitoring capabilities extendable via add-ons - Simple themability - Domain management scheme - Unified authentication management for all the services/daemons that support PAM (e.g. FTP, Squid, sendmail et al.) I only want the core functionality to be implemented (i.e. support for the items above), not the plug-ins (or themes) themselves. The front-end should be preferably written in PHP. Possibly the backend should be written in the same as well, but this is negotiable. To make sure that you've read the project in whole, please attach the name of the closest star to your bid or pm as well, otherwise it will be completely ignored. I would also welcome to see plug-ins for the following implemented: httpd (Apache), vsftpd, named (ISC BIND), pptpd, OpenVPN, Squid, sendmail, dovecot, MySQL (including phpMyAdmin), PHP, Python, quotas, file manager, sshd, iptables. Please keep in mind though that this is negotiable and will possibly spun off into a separate project. The budget is negotiable as well and entirely depends on the programmer's ability and willingness to implement additional functionality (e.g. support for additional OS including Windows, Linux distro or Unix type) or features (e.g. support for the management of various gaming servers such as Minecraft, Source server etc.; streaming server support for vlc, shoutcast etc.; nginx, lighttpd, ProFTPD, postfix, backup solutions, samba4, ntpd, telnet etc.). Besides references of similar prior projects and/or list of skills you have that are necessary for the project please try to answer the following question in your bid or pm as well: What additional features would you suggest that would make you use the resulting product on your own Linux system(s)?