Hello! I (female) am planning a trip from Boise, ID to Los Angeles this summer with my two children who will be 14 and 12. I will be renting a car. I think that I have decided to take the 15 through Salt Lake to Vegas onto L.A. My question is what time should I plan to leave Boise, how long should I plan to drive and where should we stop along the way. We do have friends in Vegas so that is an option. Thanks in advance!