My husband and I are planning to drive from Eugene, OR to Boston, MA in a Class B camper in September. We hope to drive mostly the "Northern Route," OR, ID, MT, SD, etc. home to Boston. For those more experienced, would you plan for 2 weeks or 3 weeks? We don't want to drive every day, but a couple of long days of driving isn't out of the question. Also, welcome not to be missed suggestions!! Thanks, in advance, to readers and responders.