Reconstruct Encrypted iPhone Backup

I have a 63.5 GB encrypted iPhone 14 Pro backup created in iTunes and still know the original encryption password. When I attempt to load it, iTunes flags it as a “corrupt backup.” Initial checks point to damage in Manifest.db / Manifest.plist, so nothing mounts and the usual third-party repair apps I tried could not progress past that point.

The goal is to determine whether this backup can be repaired or rebuilt and, if possible, extract every intact item—most critically my photos and videos, but ideally the full set of files and settings so I can restore the device or at least archive the recovered data.

What I can supply:
• The full 63.5 GB backup folder exactly as it sits on disk
• The correct encryption password
• A summary of the third-party tools already used (so you don’t have to retrace the same steps)

What I need from you:
• A professional assessment of the backup’s integrity and the likelihood of reconstruction
• Repair of the Manifest files or any alternative method that lets the backup open in iTunes/Finder or be exported in a browsable format
• Delivery of the recovered data in a structured form (usable backup or extracted files) along with a brief report describing what was recovered, what was irretrievable, and the techniques applied

Experience with encrypted iTunes backups, SQLite, Manifest.db/Manifest.plist structure, and iOS forensics workflows is required. If specialized tools or scripts are involved, please note them in your approach so I can maintain a clear audit trail for this fully authorized recovery.