Recently built a kayak rack for the garage of my 25V. Wanted something light that I could take out of my garage, once I got to my destination, and use to store the kayaks at the campsite. Decided to build it out of PVC and I used this design to build it:
My $100 DIY PVC Kayak Rack | Red is a Flavor. Fits the garage area well and I secure it with ratchet straps attached to the floor D-rings. Secured the kayaks to the rack through the side handles of the kayaks with ratchet straps. The top bin is going to be a tight fit, so I will probably just store paddles and gear here.