UPDATED: Shipping this item is very cost prohibitive, so I will probably hold on to this or find a local buyer.
I purchased this bag for a long trip I did early this year on my 2008 Nomad. It worked great and holds a ton of stuff. If you have a 1600 Nomad with a Mustang seat with the drivers backrest, this will fit perfectly. I even added an extra pad that fits just above the drivers backrest and makes it super comfortable for your upper back as well.
I recently traded my '08 Nomad for a 2012 Voyager and added a Corbin seat and backrest. This bag does not quite fit my new set-up, so I may as well see it go to good use someplace else. If road-tripping is your thing, you won't have to leave anything behind with this bag.
The bag retails for around $135.00 (plus shipping). I'm asking $75.00 OBO (plus $20.00 for shipping). It is in great shape and was only used on one trip. If interested, PM me here or email me at firstname.lastname@example.org
Saddlemen BR4100 Back Seat Bag