Anyone have any experience with a 504 plan?

Janey has been diagnosed with ADHD and her doctor has suggested she be given a 504 plan. I've heard that the Roland-Story Middle School is not the easiest to work with when it comes to these things. And, yes, I realize that posting that ion the internet may get me into trouble -- but I really don't care. I want to work WITH them, but if they start to give us the run around, I want to be prepared.

They won't just start the plan -- I know that. Even though she has been through 6 hours of academic and psychological testing with a psychologist, they are not required to put her on a plan. They will have to do their own evaluation (I guess)

I am exasperated with this because Janey has already missed (I believe) 2 years of academics. This isn't her fault, or the fault of her teachers. I feel like it's my fault because I should have realized that she was in need of more help a lot earlier than I did. But now that we know, I want to be sure we get her caught up and continue to build her self confidence.

So here are my questions...

How long should it take to see a 504 plan in place for Janey?

How long should we give the plan a chance to work before we take other action?

Our back up plan would be for her to complete 5th grade (and possibly more) in a home school setting. Does anyone have any experience with homeschooling an ADHD child and what curricula are recommended? I know that Roland-Story won't let you use their curricula.