I have an e2 and I can get the bars off in a minute or so so it isn't quite the major task it's made out to be. I have my hitch/unhitch stuff all more or less together tho.
I shove the 6X6 block under the tongue jack, jack it up. My electric jack isn't terribly slow., Pop the bars off, throw them in back of the truck. Run the jack off, throw the block in back of the truck and that's it.
If your using one of those conical plastic doohickeys to go under the jack, we gave up on that thing after a week or two.