If I were you, I wouldn't waste my money. (I have a '15 Limited.) The sliding part only goes forward about two inches, maybe three. Not really all that much. And, often, it it too easy to slide forward. At times, I've exited the car, and had to reach back in to grab something off the passenger seat. I'll reach in and brace my right hand on the console to grab something with the left hand. More times than not, the slide goes forward.
Another disadvantage is that if you have a tall soda in the rear cup holder, the console top interferes with it when in the forward position. Short cups and bottles, no problem, but if you have something tall with a straw sticking out, it will contact the console lid in the forward position. It will also be more difficult to pick up the cup.
The storage bin under is the same. At least on the '15 model, there is no extra storage in the lid. I think on the '16 model, the lid has a small storage compartment for flat stuff. Not so on the '15.
One thing I would pay for is a new console top that is about one inch higher. As is, it is just a tad too short to rest my arm on comfortably.
p.s. If you really want to purchase the parts, I'm sure the dealer can get them. Probably a special order, but they should be available. The other option is to check a wreaking yard.