We see a lot of members needing to sell their campers so hopefully some of these ideas may help in finding a buyer quick.
De clutter the camper to what it will look like when a buyer inspects.
Clean the camper from top to bottom. Make it sparkle, Amorall the tires and stone guard, touch up any stone chips if possible with a spray can of the matching color, fix any parts that look a little worse for wear, any rust spots should be cleaned, spray the springs etc.
Using the template write all the features the camper comes with, everything from the hitch to the tailgate. Reason for selling and why it was purchased in the first place.
Find a park or open area to set up the camper properly.
Start the photos off with the camper closed and take pictures front, both sides, rear and underneath. Include all electrical set ups, water tank set ups, kitchen set ups etc
Then take photos of the camper opened up with awning first then add side awnings next in a separete photo. Start from the out side and working your way inside. That way it tells a story from beginning to end. Try different angles also when taking photos even squat down and take photos.
The competition these days from new campers can make it hard selling second hand ones but if the camper looks like a million dollars it will get noticed.
This will also help attract buyers from out of town and interstate.
Setting a realistic price is not easy, try and find what has sold or is for sale for the same brand if possible. If not start at a price that you would like to achieve and go from there. Depending how quick you want / need to sell you may need to reposition the price a number of times to get interest. Once it's perceived as value buyers will call.
I hope this helps and good luck selling.
Mark