Are you questioning the route because of the middle of nowhere? I didn't follow I-80 across Wyoming and didn't die. Plus you have a twin. Maybe I'm too risky here, but it doesn't bother me. I'm still planning my route home through Utah/Colorado and it's pretty remote for a few hours. Go at 11,500 and you won't have any terrain issues. I've flown that section of Idaho you're going through (once) and the only bumps you should get would be normal afternoon heat if there is any. The approach into WYS could be bumpy.