North America is big and believe it or not has more than 200 years of history we are not as young as the press will have you believe. If you want to see some things most people never will you can visit a few of the places that predate Rome. Most will forever go unseen as Europeans viewed the native cultures as inferior and destroyed all traces buildings, tools and people gone. still some servived in the more remote places in the west and there are some mounds in the east. Most people are not interested so lets not go in to it.

East to West is a sound way to see the USA and Canada Mexico is more north to south. Looking at your routs id say no to all of them I cant see sticking to them long enough to complete most. Id have to know more about what you realy want to do. If you got the time start in the SE of the USA say Florida look at at all the old people talk to them see what they have done in there life. Look at the rich and powerfull there on the beach then go a little inland and see the poor and hopeless. That will blow away most misconceptions people have and there "stupid" ones that cant vote hehe.
Go up the cost dipping inland to pick up civil war sights and the war for independence. Go in to the Appalachian mountains ride the dragons tail see all the stupid rednecks and hillbiles as they realy are. Hit up Washington DC then New York New York see how it its to the old one. Go up to Maine the land stolen from the French in to Quebec for some old wold charm (good food there). Across Canada up to Big bays then crossing back and forth till you get to the point where you feel need to go to Alaska (or dont). Then down the costal roads or jump on a ferry boat south (saves time). Run the cost and coastal range till San Francisco or so then back east in to the desert then south in to Mexico till you had your fill of the dry then east till you hit hit Gulf of Mexico then back north and east to where ever you run out of money for a hop back to the UK.

Some things you may want to consider the bike will take bit of abuse on this trip, you can get on in the USA cheap. It will more than pay for it self over hiring one Get a good USA Atlas the National Geographic has a nice one Amazon.com: National Geographic the American Road: Atlas & Travel Planner (NG Road Atlases): National Geographic Society, Melcher Media, Kay Scheller: Books

Not knowing you well or the time you have for the trip limits the help we can give you on your trip.

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