EverQuest Phase 4 Beta

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I recently got my hands on an original EQ Phase 4 Beta disc. Anyone have any information as to what, if any, changes were made from the baseline Phase 4 Beta to the initial live launch of EQ? I don't mean server side stuff, just differences in models, zone architecture, etc. (the kinds of things that could be explored with EQEmu).

I'm tempted to build a sort of hybrid Phase 4 Beta/EQLive hybrid folder and give the zones a once over with EQEmu v0.5.5-DR1, but if the files are basically identical to the launch of Live, I'd just be wasting my time.