Instead of creating a whole new office environment how about designing a reclining office chair. Simple.

I built this thing. It was intended for 'Burningman'conditions with winds up to 50+ mph. It had to be somewhat heavy. I have another plan for bicycle touring where the 3 ft long trailer lid opens up with an acordian tent instantly folding out. The padded bed is ready to climb into. The box underneath houses all possesions. I had a hoot for the 2 weeks I lived in this camper. Something similar to my camper, like a push around version, would be more suited for a city homeless person.