I've pulled this off, easily.

Copy all your wow MPQ files into a sep folder, make sure that the directories remain intact.

So, in a seperate clean folder you should have "data" then in data will be all the normal MPQ files, then another folder called "enXX" with all your clients localization MPQ files.

Open up each normal MPQ file with an MPQ editor, and drag your "world" folder into it that you've edited with noggit.

Repeat this process for each MPQ file.

Then run your Vmaps batch file and you're home free.

Worked for me on multiple occasions.

*Edit* Only realized the post date after posting this, sorry, delete if necessary.