Correct me if I am wrong, but I can use those file structs in Here assuming they have the correct structures for classic live (ver 1.13.7.38475) not entirely sure they do.
Either way I seem to be getting errors with the DB2Meta Field Array... errors like expect 5 got 6 or argument index out of range.
I have updated my layout hashes for structs as well
Using MAP extractor on classic wow
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Did you manage to work through this?