Hi, we have 2016 3010DS. They have the mounts already installed on your frame for the Quadra Bigfoot system. We bought new and have been using blocks. I'm going to have bigfoot installed by Bigfoot of Lakeland, Florida (not the actual company). Their actual company, where they also do installs, is located in Michigan. Hope this gives you some ideas.
I think you can buy them on Amazon, if you want to do self install.