Hi, We are planning on a big 75 day trip exploring the USA with our two preschoolers, before heading to New Zealand .

As it stands, our trip is divided into three parts, and any thoughts, or advice you may have would be appreciated.

Part 1: Arrive New York, then hire a car to travel down to Washington DC via Lancaster, Amish country, etc.

Part 2: Fly to Florida and spend time down there with a hire car.

Part 3: Fly to Colarado Springs, and hire an RV. Travel across country: Moab, Monument Valley, Tuba City, Flagstaff, Grand Canyon, Zion, Bryce Canyon, Las vegas, Yosemite NP, Morro Bay. Take coastal route up to San Francisco and beyond. Possible end point Portland?

It is Part 3 that we are not sure of.... Our main problem is we do not know where to finish so that we don't have to do much travel to either get to LAX, or Vancouver to fly to New Zealand? Thinking possibly cutting out Las Vegas (maybe not the best place to see with preschoolers in tow!?) and taking a more direct route to the coast?