Be careful here! Looking at your images I see the metal frame clips on the left side are bent to the side. They will need straightening but if you snap off the clips that will require a full keyboard replacement which you really don't want to do $$$.
You are also missing the spring wire that rides in the channels and clips into the frame as well. You'll need to contact these folks as the part listing they have doesn't list it [https://www.thebookyard.com/product.php?cPath=66_510_499_725_734_745&products_id=23134|TheBookYard UK: Space Bar MacBook Pro/Air (Type-R)]