I have two items for sale....a like new zpacks duplex in camo, used on one overnight trip and then just setup for the pictures below. Cuben is as nice and crisp as the day it was made....you can't tell its not new except for a bit of dirt on the guyline loops from the stakes. Bought in 2017...manufacture date is Dec 23, 2016. The duplex in its stuff sack is 22.5oz.
Also bought was the flex pole upgrade...which was not used on the overnighter so it is actually brand new. It is 10.9oz in its stuff sack. The upgrade is actually really nice...it gives you ->

1. A freestanding option...you can now move the duplex around for the perfect spot/location in camp, or on wooden platforms. Or....on rocky ground when some stake locations are too difficult, you don't have to stake down every corner.
2. It removes the poles from each doorway...making it even easier to get in and out of the duplex because you can now be under the highest point of the duplex when getting out.
3. More headroom: it automatically raises the mid panel guyouts up and away from the center...you can see the difference in the below pictures (so you don't need poles or sticks to prop up the side panels.
4. Stronger: You could combine the flex poles and also use your trekking poles to make a stronger shelter.

I am willing to split up the duplex and the poles so you don't have to buy them together.
A zpacks camo duplex is $630...since this is like new, selling for $50 off at $580 shipped.
The flex pole upgrade is $125....brand new, selling for $100 shipped free.
Will sell both together for $670....that normally costs $755!
You can also view high res versions of the pics here -> https://goo.gl/photos/JWp787cVUvRKduaP9