Here's one thing you can do that will accelerate your setup. Get thee to a Lowes or Home Depot and buy a couple of metal rings, diameter 1.5 or 2 inches, with weight ratings in the multiple hundred pounds. (It is better to get descending rings, or lightweight climbing carabiners, but time is short here. Or maybe you have weight rated carabiners already...
What you're going to do with these is place them on the suspension rope as an anchor for tying off the suspension cord. Remarkably, all you need to do is wrap the suspension line around the device about 3 times. When the rope is under tension it stays put, and when the rope is not it is easy to loosen the wraps and move the device to where it is needed.
To hang the hammock thread the cord through the tree hugger loops just as you would to begin the HH wrap, but instead of wrapping bring the working end of the cord down to the ring/carabiner, thread the cord through it one more time, and then fasten off. An easy knot to tie and untie there is to put in a slippery half hitch (sllippery===the last step push in a bight rather than the end of the cord, and then through the loop of that bight push in another bight, and tighten up. That will hold, and a good yank on the free end will take it all apart. Or use a full-turn with two half hitches, the last one being slippery.
I made a couple of videos on using cord suspension, the business about the ring on the rope is on this one, around 1.15.