I sold my last RV on craigslist. I paid $13,500 and sold it for $14,500 two years later. Make sure to a lot of pictures.. When I say a lot I mean a lot, like 30-50 pictures. Photography is everything...Open all the windows blinds, turn on the lights Make sure all the pictures are well lit. Dress it up a little with some place mats and stuff like that. Point out anything you are aware is wrong with the RV so there are no surprises. People like to see pictures before they actually make initial phone contact. Make your buyer fall in love with your RV just like you did.
Just my 2¢.