My wife and I and another couple will be leaving on 6 July 2015 for a trip to the Pacific Northwest, a total of about 6500 miles. We will be riding a 2012 Goldwing CSC Trike and pulling a cargo trailer. The other couple will be riding a Harley (two wheels). Will be visiting places in South Dakota, Montana, Wyoming, Washington, California, Colorado, Arizona, Oklahoma, Kansas, etc. We are planning about 30-45 days for this trip. If anyone has any suggestions on how to prepare and what to take, I would appreciate your advice.