How can I update Pages for High Sierra

I have been trying to update my old pages (V 6.3) because I need some features in V.7. I upgraded (after 2 days of effort) to High Sierra, since that appears to be need for V.7. However, before the update, and after the update, when I click on Update in the App Store on the Pages page, the App store just hangs infinitely. I cannot find ANY location that has the older version of Pages. (I am not ready to update further than High Sierra at this moment.)

Can anyone help me just get to a download of Pages 7.0 (or 7.1)? Thank you.