I am a bit late here. I have been making route plans for future trips.
We use trekking poles for spreader bars. They are carbon fiber and won't collapse closer than 24 inch. Basically I used about 3/8 nylon web and made a loop for the tip end of the pole and sewed close to one end to tightly wrap the tip and allow the other end of the loop to be larks headed onto the suspension near the hammock.
For the grip end of the pole I made 2 loops that would tightly fit the pole grips then used 1 more piece of web to connect the loops and cover the top of the grip, again leaving a longer tag loop to connect to the suspension.
I attached 1 cup and 1 tip holder to each hammock, we usually sleep head to foot..
You can exit from the hammock to the center with not much problem either which works very well in weather mode.
The photos explain it better than I can.
When attaching the suspension to the tree come from the "out side" of the tree, not from the center for each suspension.
Yes, you do feel the other person move, but for us it is better than carrying 2 tarps.
We have used this for about 2 years with no issues. I thought the tips might flex to much or break but no problems yet