Sorry if its been done already, but I just saw this on bp.com

https://bikepacking.com/bikes/pechtregon-cycles-luguru/

The first paragraph reads: ... PechTregon Cycles’ wild and feature-packed Luguru adventure bike, complete with its folding frame and handlebars, built-in stove fuel, integrated spare derailleur and friction shifter, and “octopus” Headshok-upcycled fork.

I just love it.

Saw that and it looks good, particularly the folding-ness of it all. Not one hundred percent convinced about storing gas in a frame tube - I'm sure it will be fine but I would manage to do something stupid which resulted in it blowing up.....

Clever stuff, not sure about the choice of location for the spare mech though

Couldn't see a weight?