You will receive the step-by-step PDF instructions and XML parts list files in an email. The XML file's contents can be uploaded to a Bricklink.com Wanted List to make it easier to find the pieces you'll need.
You can download the XML files here so you can check how many pieces you may have already before getting the instructions. If you're unsure how to upload an XML file to Bricklink, check out this short guide here.
Thanks for your support, and you can contact me at email@example.com with any questions!
Note: The flying Delorean seen in the cover image is not included in the instructions. It is a slight modification of a design by Hachiroku24.