Hay there Klinkaroo
For starters you could check out a RV's electical sys.
if you want to power a router +X number of laptops
you would need a lot of "stuff" to do it right I'd think.
(blood ,sweat, tears, a ample supply of swear words)
converters, beer, isolater , a good deep cycle battery
a min.4ga feed wire,more beer, fuse blocks, possibly
a higher output alternator . check out some car audio
shops that do "insane" wattage as the power requirements
would'nt be that different.(I think they use capacitors)
(you could do that while getting more beer

)
it's not that you couldn't do it while driving its just
that I'm one of a small percent of people apparently
that think if you're driving , thats all you need to be doing.