YES.

I've just passed page 500.
Not quite the halfway point...but counting the endnotes (now into the 200's) perhaps I am almost halfway through. 17 + 34 = 51 pages of endnotes, so YES. I am halfway through now.
That took about a month and a half with a week taken out for vacation (from IJ).

Huh. So at this rate I'll perhaps finish the second week in September.
I either need to speed up or just be ready to read it at school and finish with everyone else at I-S.

Whew.