Tarp/stove combos may work well for certain people in specific situations. But they also carry limitations. And two pounds might as well be two tons for many on this board.

Also, there is no such thing as a no trace wood fire. Even if you completely bury the ashes you have changed the soil and the absence of the wood you burned (which would otherwise decompose to enrich the soil) is your trace. I might buy your pitch if you carry in your wood, carry out your ashes, and confine the fire to the stove. But I doubt that's what you do.