Great post mate! Thanks for sharing the knowledge...
I believe you’ve double counted the 26m for New York Holdings in your calcs – as these are called out as indirect shares in the Change Or Directors Interests announcements as of 25/05/18 – so they are already counted in the 47m held [indirectly] by Colin Vost.
Brings that total down to 104.4m
Further, although the Top 20 per the AGM is probably a bit out of date (27/10/2017), but as @apkjm points out, there are a few in the top 20 for BKP, as well as in the top 20 for 4CE (one of JB's other companies) as an example. 4CE’s top 20 here/below is a bit more recent – 03/04/18. You have to imagine, the holders in 4CE would vote in favour of JB for BKP.
I’ve highlighted the shared ones in Red “Friendlies” below (Blue for the current BoD).
I’m just doing my own research here (although I’ve already bought in ) but, having done so, I’m EXTREMELY confident JB + Co will get voted in, however, not complacent – as you say, 70% of the registry are retail holders, and we still need to vote for JB - (assuming this is what we want )!