If you are on facebook, list it there first and have your friends share your post. Then, again on facebook, look for "ohio campers" for sale and add them as firends and list on there too. We sold our 5th wheel from my facebook post - only took about 3 weeks to sell it and it didn't cost me anything to post.
We listed our 5th wheel on craigslist and got several scammers trying to purchase it - they wanted to deposit the money into my paypal account and send extra so I'd give to the pick-up guy.....I don't think so - cash in hand or no sale!!!
Also, I would list the camper and truck seperate but if someone wanted both you could always make them a sweet deal.
Good luck....