If this is going to be database-driven, possibly a PHP Nuke -> UBB.Portal conversion script? I know it probably can't be done, but it's just a suggestion
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.