Scottsbluff doesn't have much, but it shouldn't be a problem since you can do most of your charging at home. You've got Superchargers to the north, south, and west of you so travel shouldn't be a problem. I know of at least one Model S owner in your area and they drive to Lincoln all the time. Look at Plugshare.com for non-Tesla sources,
@Rocky_H is completely correct. I just updated a lot of places last week.
Last week, I drove from Wheatland, WY, through Scottsbluff, to Alliance, where I charged overnight at an RV park. The next day, I did a crazy drive to Grand Island along Hwy 2. I made short RV park stops in Mullen and Broken Bow (mostly just checking them out) but had plenty of charge. I stopped in Thedford too but, at 120v/24a, that would only be an emergency stop since 10 mph charging is so slow. If you're really going somewhere to the east, just drop south to the Sydney or Ogallala Superchargers and proceed along I-80 where there are plenty of Superchargers. If to the west, go to Cheyenne, then I-80. To the North, you can Supercharge in Lusk, Wy, or Custer, SD. The only place where going will be slow is to north-central NE since you'll probably have to head north to I-90, use Superchargers, then drop south into NE.
You are probably in one of the sparsest places in the US so I do recommend getting the long range - it will come in handy, especially in winter. The good news is that you are in the middle of the sparse area so you only have half the distance to get out and you can always start your trips full.
I know folks who drove from the Gothenburg Supercharger to Mullen and back without charging in Mullen. That was stretching it but they managed by driving slowly. You should have no problem.