Geis,
By all means, apply! And write a stellar CV/cover letter or whatever neeeded, so they'll love you as much as we love you!
Just imagine how RELIEVED you'll be afterwards, when you have sent it.
If the job turns out different from what you expected, or too 'difficult', you can still say no later. Even after the interview or after you started. But the only way to see what it's like is to try - fingers crossed and Good Luck!