Several things you can do. Check prices on NADA. Look on other for sale sites to see what they are asking, and if you watch you can have a rough idea of how long they were listed and if they kept dropping prices.
Your RV has been removed since it could be seen as a masked advertising attempt, you should still be able to get some assistance in how to best sell your RV.
Two Wire Fox Terriers; Sarge & Sully
2007 Winnebago Sightseer 35J
2020 Jeep Gladiator Rubicon