Grim8P I don't think I'd go crazy
Whoa, whoa, WHOA!!! Clearly you don't understand how we do things around here, bub! Going crazy is always step 1.
Orilise: If a thing is worth doing, it's worth doing obsessively.
Seriously though, I'd just use roughly the same method I used to look for the undead Trins, take the Event Contents dump, use Reg Ex to reduce it to a fine paste consisting of map IDs, event coordinates, event pages, line numbers and a marker indicating if the contents of an event line contain dialogue, transfers or a battle processing. Then purge every single event that doesn't have (#1 Or #2) And #3.