Just saw this thread, Scott I know you will come up with a diabollical roadbook rally wherever it is going to be held. Im excited and Im in. A few points to ponder.
For us eastcoasters in particular 4,5 or 6 day event will be optimal. (remember we have to travel cross country twice)
Hotels are nice at the end of a hard day, but maybe a bivouac one or two nights just to get the true feeling of a dakar style multi-day rally.
Terrain, Im not really concerned about, Ive ridden your roadbooks and they are all fantastic. You would probably draw more competitors if the route is bigger bike friendly or if you cant help yourself , throw in an optional technical section for those interested.
Damn youve got me all excited.