Taking an RV trip early in April from St. Louis, MO. to the Grand Canyon State park in AZ. Renting an RV and taking 4-5 people depending on who can get free. Taking my son as well. 1st time using an RV, traveled on a tour bus for 7 years, so I have some idea but I am sure there are differences. Any advice on where to stay, where to go, things to do would help alot. As well as things I need to take I am not thinking about...or were to find them on this site. Thanks in advance for the help!