Planning a driving trip. Leaving from Chicago on September 30th. We have to be in Las Vegas by Oct 3rd and will spend thee 3th and 4th there, leaving the morning of the 5th. From there we want to drive to the Calf coast and drive the Pacific highway (no particular place, just out to see the scenery). We have to be in Tuscon by the 14th for a day or two. Would like to see the Alamo after that and then head back to Chicago. Have to be back by Oct 24th. Mostly interested in scenery, historic sites, national parks. Thanks for your help!