You can import Collections from another Kindle device, at least you could with the Touch. So set the Touch up as you want the KPW to be. If I remember correctly, you have to first import all the books into the new Kindle, then import the Collections from the other Kindle.
If you don't import/load all the books first, the Collections will import empty. But if you import/load the books first, they will be placed in the Collections you import from the other Kindle.