They're definitely doable...I'm doing Beethoven Op 57, Liszt 10th etude, and the Rach Bb major prelude this year (among others)... I don't think doing the ENTIRE list consecutively is realistic.
I'm assuming the list (I keep writing Liszt, and having to correct it haha) is based off of impressions that these pieces sound hard or look hard on the paper. Don't play pieces for that reason!!! I was like this in high school, and missed out on simply beautiful music to play!
Instead of Feux d'Artifice, try out Voiles or Canope or Cathedrale Engloutie. Maybe go for Feux d'Artifice if you've already played some Debussy preludes, but there's no reason to jump to that one right away.
As I said earlier, these pieces are totally doable! But you need some balance. Along with the three I said I'm learning, I'm doing some pretty tame pieces in combination (some slower Rach preludes, Brahms, etc).
Don't bother with Islamey if you've put the Chopin G minor Ballade in the same question of "is it doable". If you are unsure of the Ballade, the Islamey will haunt your dreams.