Been following this thread since it started. Thought I would make my contribution.
For the past 25ish years I have carried my kitchen kit in many types of containers.
Being a carpenter I always knew I could build a chuck box but felt that wood wasn't the best material for a strong, lightweight box without bulkiness. That is until I started using epoxy.
Unfortunately I lost my build pics.
View attachment 455125
I used 5mm Baltic birch plywood and dadoed/or rabbeted all of the joints.
Before assembly I coated the panels that would be hard to get to afterwards.
Then I started coating the joints with the epoxy and assembling the panels.
The whole box was assembled in one shot using a few micro pin nails from a pneumatic nailer to hold things together while the epoxy set.
I then used 4" wide 4oz fiberglass tape,
https://amzn.to/2MzW8U4 on the corners, wet it out and coated the whole exterior in epoxy.
After the lid was cut off I put a double layer of material so the lid seam has an overlap.
Then I added a near full length stainless piano hinge for the lid, and the front panel,
https://amzn.to/2JXGqQZ
I used some Southco slam latches for the front door,
https://amzn.to/2JM3TbB
I used 1/8" steel cable and ring terminals for the lid and door "catches"
Not shown, I ordered these recessed handles,
https://amzn.to/2MxUPVu, they are yet to be installed.
I have considered (and even ordered) some sort of hardware for the lid closure but haven't really seen anything I want yet. Where mine stows, on my under bed slider I don't feel it really needs a lid catch.
The epoxy I used was this,
https://amzn.to/2tfAcVf, I only used about 1/4 gallon
I had intentions of doing a final coat of either, Monstaliner or, Raptor liner but thought the natural finish looked cool and showed off the construction details better. The surface isn't perfect because of the fiberglass tape edges and a textured paint would be the way to go to help hide that. Additionally the epoxy I used isn't UV resistant so it will fade or get chalky eventually.
View attachment 455126
All opened up, on the right lower is double containers. We usually throw/do our dirty dishes in the lower one. The top one has cups, mugs, sauce pan, plates, a fry pan and other misc.
The left lower has the dutch oven, tongs, hatchet, coffee mug.
The upper right is silverware, upper left is seasonings, tin foil, ziplocs, soap, scrubby pads, IR thermometer (essential for dutch oven cooking IMO)
The right side cubbies are shallow allowing a slot for my griddle behind the stove.
View attachment 455128
This box fully loaded is 65lbs and measures 15 1/2" wide x 16 1/2" tall x 27 1/2" long
Hope you enjoy checking it out and that it inspires others.