Yes, that is my understanding. If the used one doesn't work out, I found the online prices hover around $120. In fact, here is the one I bought for my 2016:
I bought mine from a pick-n-pull in OR. It was off a totalled Leaf. Total cost was $60 with shipping. It was in very good to excellent condition. Just another option to consider.
You're welcome! Yeah, I know. I likewise purchased a cargo organizer online from the same site. Free market competition in what are essentially commodity products.
Another option for the cargo cover is chancing upon someone with an SL model who doesn't like the cover (standard equipment). They might be glad to help you adopt their unwanted accessory.
Not conclusive but my understanding is 2011 and 2012 are SLIGHTLY different than 13-17. I had one that came with my 15 and had a part number for the early model. Fit. Closed. Just super tight and got stuck everytime it opened. Annoying.