Welcome

. My oldest dd skipped 5th grade, so speaking from experience here...
If you think that a skip may be in her future, make sure that she has both nationally normed achievement tests and an ability test in her school files. Ideally, an IQ test would be best for the ability test, but I understand that the newer version of the Iowa Acceleration Scale may use a composite CogAT at or above the 98th percentile in place of IQ. Also, I'd get her signed up to take the EXPLORE through your regional talent search next year. EXPLORE scores or other above level testing are not an absolute necessity on the IAS, but they are beneficial and are considered into the overall equation if they are available.
I also liked your comment about the time devoted to a special needs child and a gifted child in terms of advocacy being similar. I do feel like I spend a lot more time worrying about my dds' education and working with their respective schools than I might otherwise.