I've got a J104 pack for sale. I've got too many packs and I've got to get rid of some. The pack is in "as new" condition. It comes with a rain cover and a zip-in panel for when you need to expand the pack. It is a really good day-pack when you need to carry spotting scope, tripod, and other gear.
$100 + S&H is over half off the new price.

Here is a link to the description (I hope that doesn't break any rules).
http://www.eberlestock.com/J104%20Just%20One.htm
Photos:

I will buy this, pm sent

I'll be next in line

10-4. It is sold pending funds.