You should probably just order the parts. Grove makes things much more convenient. Bad news is that the seeedstudio site is almost completely always out of necessary parts and it takes almost a month to get parts sent to you. Not only that, but once they update the versions of necessary components, such as the grove shield, your old code is no longer relevant if you want to make another one. Good news is that many of them can be found on other sites for a little extra and with less time spent waiting on them.
Seeedstudio is backed by some amazing and brilliant people, but they just don’t have the ability to conform to parts demand.