Bright Suns, Corey!
Welcome to planDisney! As someone who likes to travel light (and at lightspeed) I totally understand wanting to ship some of your larger purchases back to your home. Let's get your cargo plans figured out, no smuggling required.
I placed a transmission to Batuu this morning and was able to confirm with Officer Jennifer that you should be able to ship your out-of-this-world items home by visiting
First Order Cargo inside Star Wars: Galaxy's Edge. However, exporting items off-planet (or from "The Happiest Place on Earth") does require some paperwork. Please make sure you keep all your original receipts as you shop during your visit because you'll need them to complete your shipping process with the officer at First Order Cargo.
Savi's Workshop is like nowhere I've ever been, on any planet! It would be wise to give some thought to the path you will follow as a Jedi before you arrive because each builder must choose their own path: Peace and Justice, Power and Control, Elemental Nature, or Protection and Defense. Once you've constructed your elegant weapon don't forget to have a Disney PhotoPass Photographer capture some photos of you with your lightsaber! Perhaps in front of the fastest hunk of junk in the galaxy, the Millenium Falcon? A good idea, I think it is!
Corey, I hope your voyage to Batuu and beyond is adventurous in all the best ways! May the Force be with you!
Keep moving forward!
Amanda