Nice - all works for me (tho i did have to properly restart apache after the sympl-web-configure step for the curl test to correctly show http2 as working). Might be worth being explicit at the top that these commands need to be run as root and not the sympl user (unless you stick sudo infront of them all)?
feel slightly iffy about having to modify the virtualhosts and erb templates thus changing the checksums and blocking any future changes by sympl to those files, be nice longer term to just create a file in config and the templates/virtualhosts to automatically use setenv instead for the php_admin_value’s?