We are starting to plan a big trip for late June 2017. Want to visit: Sequoia, Yosemite, Redwoods, N. Cascades, Banff, Glacier and T. Roosevelt. We prefer electric hook ups, but want to be close to the action in the parks, so we can make due without it. Would like to be close to the major activities in the parks and need flush toilets. We will pull our pup from SC and have 2 teenagers. Thanks for any advice!