So after sitting on a old, badly written draft for about four and a half years, I've decided to pick my novel back up and restart work on it. So, for me, that means heavy plot and setting editing and basically starting from scratch. I've elected to set the plot of my book in Sioux Falls, SD. Thus far I've already determined the locations and addresses (fake ones) of both of my main characters and I've done a fair amount of research on the area as a whole. Now the main characters are high school students, and thus that leads me to a bit of confusion. The local high school in the area is Roosevelt High School. Now, I can't find anything denoting the layout of the building (which I would assume is for a very good reason), nor can I find any helpful pictures of the interior. So I'm trying to decide whether I should just make up the interior of the school (basing it off of my own high school) or if I should just forego Roosevelt altogether and just make the high school up in its entirety? I'm trying to keep to a realistic description of the city and I'm wondering which of the two would be better to do, both for realism and ethic's sake.