I have an extra Gossamer Gear Marpiosa Plus for sale. As far as I know, they are all the same size (med/large) with the only difference being the waist belt.
It has a large waist belt (which you might notice are now sold out on the GG site). It was used for one 5 day trip on the wonderland.
Note: This pack was one of the Mariposa's that had a defect in the waist belt sweing and so GG took it back and repaired it free of charge. There are no other issues with the pack and its in good shape.
I'm only selling it as I've lost enough weight that I need a small waistband, so I bought another.
Its blue and comes with the pack, pads, and carbon fiber stays.
First $75 takes it (plus shipping). They retail for $130, which I paid for it).
Contact me at wade (at) heninger. org