My husband and I want to take our boys (9 & 6) on a two week trip from Tennessee out West in our Motorhome. Is it reasonable to think we could go all the way to the West Coast. We would like to go out through Colorado as that is where my husband was born. Maybe we shouldn't "plan" farther that Las Vegas and then seem to have some four hour destinations all around us (Las Angeles, Grand Canyon). Want to show the boys as many natural wonders as possible, but don't want to kill my husband with driving which may be inevitable. Our trip will take place the last two weeks of March..will weather be a problem?