To join the M&G and then travel for one month, discovering the west, I built in 2 days a wooden layout. Not the best layout, for me, but was convienient and survived the trip.
I installed a bed, fridge, water system with sink, shower and toilet and some lights.
The navigation area: factory Radio/GPS, an additionnal GPS with the topo maps and a tablet PC for detailed maps or pictures. Didn't get to use the tablet as the topo were enough to get around.
As soon I got back, I took everything out and noticed it was starting to get lose and move...
Next step starting version 2...