Hi John:
I don't think that a 200 mile (330 km) range presents a problem. I spent the last years of my working career ferrying small turboprop aircraft (19 to 39 seats) across polar regions of Canada, Alaska, and Siberia and across vast expanses of the Pacific ocean. In normal day-to-day operations of an aircraft or motorcycle, we take fuel capacity for granted, and always like to have 'lots' of reserve fuel. When fuel planning becomes tight, all we have to do is sharpen our pencils and think a bit more carefully before we depart. By this I mean knowing where the next fuel stop is, knowing what our fuel consumption rate is, and managing power settings (speed, in the case of a motorcycle) to ensure that we actually achieve the range we calculate.
The first few times one does this (for example, setting off on a 1,200 mile flight trans-oceanic flight with only 1,300 miles of fuel) it can be a little stressful because of self-doubt. But if you have done your homework correctly, and operate the machine so you get the results you know are possible, confidence will increase.
I think that there are very few places in North America where there is a gap of more than 200 miles between fuel stations. I'm sure that someone will be able to come up with one or two outlier examples (a road in Nevada comes to mind), but for those rare occasions, all one has to do is buy a one-gallon plastic fuel can for $10, fill it up before departure, use it enroute, and discard it after reaching the next gas station. To me, that's a better solution than building in additional fuel capacity that increases weight and size of the moto but is only needed 0.1% of the time during the life of the bike.
Michael