Recover specific edits from damaged .mcat file?

Last week my lightroom catalog became corrupted after a computer crash and i got the dreaded “local catalog damaged” message. Nothing i did would revive lightroom so i was forced to start over.

Before deleting the Managed Catalog.mcat, previews folder, and the previews.db file, i saved the corrupted files elsewhere. Once those files were removed from the “lightroom Library.lrlibrary” container it repopulated and lightroom opened again but the edits were not to be found on 90% of the raw files because only about 10% were saved and sync’d in the cloud (I have a very large library). Only in hindsight did i realize the edits are contained in the .mcat file and not as a sidecar file with the raws image.

My question is if it is possible to recover the edits for specific photos by opening up the damaged .mcat file, selecting the edits for individual photos, and saving the settings in the new undamaged file? I have opened up the .mcat file with BBEdit and i can read the data, but i am uncertain of where the edits of specific files begin and end. Additionally, If i could figure out where those edits begin I am not sure if that would crash the new catalog again.

Although it may be possible to re-edit the raw files to look like the old edits, i need them to be *exactly* like the previous edits. Even though pulling edits from the old .mcat file and saving to the new .mcat file would be time consuming, it would still be less time than editing them from scratch.

I am working in Lightroom CC 5.1
on
Model Name: iMac
Model Identifier: iMac17,1
Processor Name: Quad-Core Intel Core i7
Processor Speed: 4 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 8 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB

Any suggestions or advice?