I built a bed drawer system for the ZR2....who says you can't sleep in the back of a short bed Colorado?
My girlfriend and I are going on an 8 month to 1 year trip so I wanted to have a great storage system, plus the option to sleep in the back with the tailgate down if needed.
We will mostly be in a big tent, but the drawer slides out and gives me room for my feet when we want/need to sleep in the back. Girlfriend is 5'1" so the 5.2 bed doesn't bother her as much

Going to put a mosquito net over the back for bugs and tarp for rain when needed.
I have the battery in the front left drawer and the shelf on the left side over the fender right behind the battery will be for the 2000 watt inverter I have coming. It will be hooked to the back battery which will be connected to the main battery and alternator via a Blue Sea isolator to keep it charged while driving.
Building it was not cheap. About $650 in materials not counting the electrical. $200 of that was for the industrial 48in drawer sliders. Rated at 500lbs. They are stout! So worth the money. Expensive build but so, so much cheaper then buying a premade system.
Bolted it down with two bolts though the floor and one to the tie down in the front. All mounted on rubber to absorb shock.
I had to make new tailgate cables to make the damn tailgate level as well....pain in the ass...
Over great project though!
I am a happy guy

I feel like I have so much more space now!