I removed the head rests in the third row, removed the second row seats, built two rectangular enclosures using 1/2” plywood, no bases and a framed opening from door side to allow for easy access to the area beneath enclosures. Added a ledger on the inside edges between the enclosures and then added two panels to fill the gap. Each had a hand grab cut out and then routed with 1/2” bit for easy access. Enclosures had spacers on front end to keep the tops level with rear seat platfoem formed when third row was lowered. Cut some ound air holes in front and side panels of passenger unit so we could put a 500 watt battery there. Worked great for a 10,000 mile fall trip. Lots of storage and cleared inside of most of stored gear so we could use a 3” insulated air matress with a double speeping bag and heated blanket.