Agreed - try selling it yourself first. When creating your ad, look at other ads to see what looks good. It amazes me how terrible most ads are in terms of pictures and description. Most ads only allow a few pictures, so I would state in the ad to contact you for more and higher resolution pictures. I would then create a separate PDF/Word document that has a more detailed description of the RV with A LOT of pictures. That way, when someone contacts you, you don't have to recreate the wheel every time in responding.