Django-cms case study
I found out that the ubuntu developers portal is also running django-cms (it's even on of django-cms's own case studies) and because Canonical have learned to share (GNNU GPLv3), the code can be reviewed here:
It's django-cms 3.2 (we use 3.4), but the same django 1.8 as us. You can see the layout difference but many similar packages that we use for the cms portions. They were using reversion for their cms too, although I'm thinking we probably had better diffs.
This kind of comparison is useful to our project because we have such a small team with few other django/cms experiences. Other interesting comparisons can be commented here in this issue report and I'll leave it open until we've exhausted the potential.