I am planning a trip across country this year between jobs on my F800ST (with factory side cases - and some supplemental soft storage). As of today, I have never ridden more than 6 or so hours in a day, and am aware that I have a lot of planning and preparation in front of me. I plan to take my time, and stay with friends in Ann Arbor, Austin, Denver, Omaha, and LA (if possible - no need for Austin if its 120, or Denver if snow starts early). Having an adventure and discovering America is my primary goal - as is avoiding any and all national chains (http://tolawithoutchains.blogspot.com/).
Outside of preparing by taking a few trips with back to back 6 hour riding days, I would appreciate any advice on routes (if I leave in July, August or September), visibility aides (so others can see me), lighting upgrades (so I can see others), and GPS/weather tracking suggestions (so I don't end up in Oz).
Also - general encouragement is welcome as I am planning the trip between jobs - with the assumption that I will get another one when I return.
Thank you all in advance for any help.