I see this post is old. But replying in case this is helpful to others.
My 10 year old was just identified as HG and diagnosed with dysgraphia. He has issues with capitalization and punctuation (among many other issues with his handwritten work).
We are in the very expensive Bay Area and it did not cost that much for the educational psychologist to administer a test called the Beery VMI. (Less than $1,000; may have even been less than $500 but it's hard for us to separate out the time she spent on the WISC-V versus the Beery VMI.) That really helped crystallize the dysgraphia diagnosis.
You should ask around and see if someone can administer the Beery VMI and if so, how much that would cost. The test I think took less than 30 minutes to administer (although I was not present, so cannot say for sure), so it's not a high-hours request of a testing psychologist.
