After searching the planet (and this site and affiliates) for that elusive "combined database", I've decided one of the best ways I can learn the Emulator DB structure was to write my own scripts for merging the two. So far, my eyes have started bleeding only a dozen times, because the auto_increments used to _fk some of the tables together are all over the place (I think that was mentioned elsewhere).
If I get my scripts done, I'll link them here. I work in ASP/VBScript and have no intention of writing other versions. Another thing I could do is post the sources my script generates once I am done - but I really think this has been done 100,000 times before "me", and I am just amazed it is unavailable anywhere.
I'll let you know how it turns out. Cuz right now, I have no idea if I am screwing up spawn and loot drops to all PEQ zones just by doing simple insert/replace.

Probably. We shall see. Meanwhile, I am learning tons, and it's very exciting!
I am easily amused.
PS: I remember reading somewhere about a standard ID scheme of zone * 1000 for entries. This is what I was hoping to end up with by the time I am done renumbering everything. Ambitious, no?