I had mine in a temporary case in an afternoon.
My final case is 7.62 ammo box.
All metal, cheap, bomb proof, with all front panel connectors it is
waterproof when the lid is on.
Perfect for QRP SOTA stuff.
I have another one on order for hacking, at £100 ish I sweat a lot less
modding this than taking a soldering iron to a big rig.