I really like the boxes through the wall idea.
Cleaver! Sure beats the heck out of having to fabricate boxes and doors and latches and …… well you know what I mean.
As for the tank! Why not turn it 180 degrees and put the filler neck through the front bulkhead? That would free up your bed space. And negate any spilling of fuel into or onto your camping gear packed in the trailer. And allow you to fill the fuel tank without having to unload half the trailer to put gas in it.
You could add a front battery box on the tongue just inside the filler neck to give it some protection, or mount a spare tire next to it.
And I just realized if your truck filler neck is on the drivers’ side you could still put gas in the tank without having to cross the trailer tongue.
You may have mentioned this already but, let me expound on this idea a bit just in case you didn’t.
If you use an outboard motor boat fuel fittings and tap on end into your filler neck on the truck you could transfer fuel to the trucks main tank with a small electric fuel pump mounted either on the trailer or truck. (Something to consider though, electric fuel pumps push better than suck. but for fuel transfer will work well enough for this application.) And, in case some of the readers don’t know, the boat lines have valves in them that will close off the hoses when not plugged in. But, on the plus side! If the pump is on the trailer then you can transfer fuel to any vehicle with a simple fuel connector and spare hose. Just have enough hose from the trailer to the truck with the boat fitting at the rear bumper so it can be tucked away safely.
I this set up on my Dodge bed tank with a pump on a 15 minute timer mounted under the dash to prevent over filling. There is a restrictor nozzle in the transfer fuel line so it only pumps 25 gallons in 15 minutes. Just give the timer a full turn when the low fuel light goes on and it will get just over ¾ tank of fuel in 15 minutes.
Uh, I think that’s all I have to add.
My 2 cents +
