Using custom data for multiple map question

I've been working on a custom data file that addes units, upgrades, abilities, etc to all four races and i had to import and use many custom icons and models. I have a question though. In order for me to use this custom data along with the models, do i have to reimport all the custom files, rename their paths all over, and load the custom data file in order for it to work? Is there a way to export all the files ALONG with their custom path? Or is ther anotherway to apply my data and models to all the maps that i wish to play?

I don't believe there's any way to transfer the files wholesale from one map to the next. You could insert them with WinMPQ instead of the import editor, but then they'd be eliminated whenever you opened the map with WE.