The air staff is nice for a E/Me, but unfortunately ther just isn't enough of those to make it worth your time in marketing it.
The air and fire wands are very nice. I would expect you can get around 20K for each.
The longbow is VERY circumstantial, since very few rangers switch off bows when their health is below 50%. I would guess around 5K for it, but that depends on the buyer.
PC On Gold wepons
Jetdoc