Before you hit the road, I would check with ADOT, last year there was a land slide just South of Page that shut the highway down (anticipated over a year to repair highway) which would cause you to go OUT and around through the Grand Canyon area. It might be fixed by now, but something to consider. I had to go out and around on my Motorcycle, which wasn't horrible, but if your not anticipating it, could cause a headache.
Otherwise you should be okay. There are some significant elevation changes between Kanab and Panguitch, but they are relatively slight pulls and with your set up will be fine. Great scenic road, I like that stretch. Page to Kanab, pretty flat and UNEVENTFUL. Williams to Page you have a few good pulls, but again, you should be fine. Enjoy the trip and stay safe.