Yes, I'm biased but would say that a light paramotor with a floaty wing and as little kit as possible would probably one of the best methods of flying in that kind of environment due to it keeping the weight off of your legs for the longest time possible.
That said, I don't know that I would want to be running over rocky, bumpy, scrubby ground on a launch run. A broken ankle or propellor in a remote location would be pretty inconvenient!
But then it depends whether the risk outweighs the reward and that is a question which only an you can answer as everyones risk tolerance, capability and experience is different.
It would definately be worth you getting into paramotoring for paramotoring sake as it is such an awesome sport, with a view to taking it into the back country if and when you feel confident to do that.
Ian.