Brahma Lock For 2015 Outback

Hello!

My name is Theodore, I am have run a few searches on the forum and haven't found this exact information. This will be my first post, so Greetings are in order! 

I am wondering about the correct size for this device. I want to do multiple security measures, but I think this will be my primary, instead of the Proven industries hitch lock. I am buying a 2015 little guy outback, with I assume 15 inch wheels. 

There seem to be 4 options the WL001, and the WL002 - Both of them coming in a shallow cover and a deep cover.

Here is a picture of my newly acquired tiny home!

Thanks for all you help!

Theodore