This has been asked before, but a good place to start is in this posting.
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">use www.nadaguides.com
and click on the RV link. As for "Blue Book" I don't beleive the Kelly Blue Book (http://www.kbb.com/blue.html
) has listings for RV's.... </div></BLOCKQUOTE> this will help get the base price you want. There is a free classified here
at iRV2, to get you started. Be aware anytime you post a ad on the internet, someone always wants to try and con you so be careful and don't ship your pop up anywhere unless your sure.