Before you buy all the pieces you need to upgrade to an SSD, maybe we have a kit for that?
These kits are also good to check to make sure you have thought of everything. Maybe you need a nylon prying tool to split the ultralight notebook? What software are you going to use? If you are upgrading a Macbook Pro, you will need a Torx or Pentalobe screwdriver.
If you are unsure, please contact us, we are happy to give obligation free advice.