Doable for someone of your level. I wouldn't worry much and just take a crack at it, you might surprise yourself. Good luck.
I posted this on Repitoire as well but might as well...I'm currently 13 and absolutely love Rachmaninoff's second concerto. There's a local concerto contest where you can play a concerto with a symphony orchestra if you get 1st place in your division. I'm probably RCM lvl 10 (I don't do theory so I'm not sure of my actual level), currently practicing L'isle Joyeuse for my next recital (just finished sight reading). I've also played pieces such as Fantasie Impromptu and Chopin Etude op 10 no 12 recently as a reference. I want to try the second movement but not sure how difficult it is (both technically and musically). Would it be worth taking a look at/attempting? Thank you for your time (\_/) (O.o) (> <)
Topic: Rach Piano Concerto no 2 