Q: Match up iPhoto image keywords

One of my Libraries got corrupted. I didn't know that, and the clone backup got corrupted. (The digital photos themselves have on- and off-site backups.) The Library shows thumbnails with titles and keywords, but it does not show the full images. Repair attempts failed. I imported my photos into a new Library. All works well, and the photos have same file names and titles as the originals. However, these 8000 photos have no keywords. The photo keywords are accessible in the damaged iPhoto library. Is there any way to copy the keywords to the new Library and link them to their respective photos? I’m proficient in AppleScript and Terminal and can handle difficult solutions.