The daily mileage looks fine.
I doubt you will be happy living at KOA's for a month. Most of them are not anything like the picture or description...and during your time frame they will be packed with screaming kids being ignored by inattentive parents. Seems like their price is a little high for what you get most places as well. The upside of KOA is that if you get a membership, the nightly prices are lower and traveling within their network will allow easy contact from one resort to another.
For your kind of trip, I personally use AAA (American Automobile Association) "Campbook's". I believe that the books can be bought by non-members, but are free to members (as well as their state highway maps). If you join the right "Regional Chapter" you can get motorcycle roadside assistance coverage (but that may also be included in your rental). The Campbooks are directories to hundreds of independent campgrounds indexed by closest town or city that are usually checked every couple years to see that they meet a certain minimum standard. AAA members typically receive discounts at these member campgrounds as well.
After a quick search, the closest place I found that rents V-stroms is in Portland, Oregon: