In my last Jeep, 4.7 WJ, I made my own storage Boxes for my gear.
I am now working on them for my WK2..
I am using a single sheet of light weight Ply for the base, 1020mm X 920mm, which fits between the floor anchors, which I will use to tie it down, so I can remove easily and no damage or mods to the Jeep's interior.
I have used Ikea drawer kits, cut a 2 X Base Cabinets #FA301 ‘FAKTUM’ 40cm x 70cm Wide cut down to 1 Draw each and put side by side. 2 X Harlig #15288 40 X 57 Draw Fronts (Discard Smaller Drawer Front) and matching self-closing drawer and runner kit.
I will finish off by spraying all Black. The top will be Ply again with piano hinges on each side so can have a flap that contours with the rear sides and will be covered in Vehicle carpet, this leaves more storage each side of drawers. I also will have a compartment behind the rear seats, in which I keep a toolkit, tow ropes, shovel, first aid kit, fire Extinguisher ect.
The drawers are removable to cut down on weight when removing to get at spare, and one person can lift it all out.
WK2 GC 2012 Overland, True Blue, Saddle Trim, Hemi 5.7 V8, Sports Exhaust with Cut-outs, Running Boards, Roof Bars, Nudge Bar Shark Fin Antenna, Air Horns, Engine Bay Air Compressor, Full LED bulb conversion, CB Radio, Radar Detector, Car Cam, Nexen 285/50R20 + for 4WD Maxtek 285/45R18 Tyres, Tow Pack.
120,000 + Klms on clock.