As for 9 AM classes, I will comment on some of my relatively recent experience. YMMV. I only took one 8 AM course during my last (and successful - I haz degree!) university experience. The course was Primate Locomotion, and very few of use primates where able to reliably locomote to it on-time regularly, and total attendance dropped by over half before the end of the term. (The professor even ran rather late once.) It wasn't the best situation for trying to comprehend a mess of biomechanics and evolutionary theory. The 9:30 AM class that followed was rather better attended - at least three quarters of the class was usually there on time - but that was still early enough that some couldn't make it reliably to class (or coherently through it). My previous experiences with courses in those time slots were far worse.

If you've traditionally had problems getting there and being coherent, it may be wiser not to try. OTOH, if you're so psyched by the course that you think you can get there on time and get stuff done, by all means go for it. And if you find you can't handle it, drop or withdraw ASAP, if at all possible. No reason to ruin your academic situation for a drawing course, even if it might be fun or exciting. Other things to consider. Could you possibly audit it, or take it pass/fail, in order to reduce potential risk?