We just finished up another storage drawer system yesterday! This one isn't near as elaborate as our last, but is super easy and inexpensive to build. Can't wait to put "stuff" in it.
If you're interested, we produced a detailed video of its construction.
very cool! i'm getting a camper shell for my tundra and was looking at the slide system to go in the bed and they are well over $1000. i think i could make what you have a bit longer and have a good set up for a lot less. appreciate you sharing!