LNEsmom, my experience with my 2e kids has been that the neuropsych eval was far and away the best thing we've done - it didn't give us all the answers, and in some instances just gave us more questions, but the broad sweep of the eval gave us an understanding of both the challenges and how they impact our kids, as well as good intuit on how to move forward with school, accommodations, etc. We were also given very local-specific advice about school choices etc, and although having the report and diagnoses didn't make advocating at school a cake-walk, it was tremendously helpful to have both the info and to be able to say to the school - are you disagreeing with a trained certified professional neuropsychologist when our school tried to argue with us

I used to get worried before evals (still do) that maybe I was going to be spending too much $ for nothing, that maybe I was imaging the existence or depth of my kids challenges, or that maybe I should wait a little longer or try something else first. I was given some great advice early on - the eval is worth doing, even if urine out everything is fine, because then you'll know everything is fine. If there is something you need to address, it's possible you won't get all the answers you need or you might disagree with the findings, but if you look at it all for what it is - data - data that you take back and compare/correlate to what you know about your child - every eval is helpful.
Best wishes - let us know how it goes!
polarbear