I got the materials from bunnings
12mm ply
soft close draw slides
marine carpet
hinges/knobs
screws etc
Basic design is one sliding draw, one waeco fridge slide which I already had, two small pockets and two other storage compartments. There is also a gab between the tub and the draws where I usually stash snatch straps etc which fit nicely down there. I also wired up a switch panel and drilled that on the tub
Here are some pics, might be a little out of order