The story is here. http://homepage2.nifty.com/shodokan/en/oshie3.html
Not everyone seeks a camera.
I also wouldn't get wrapped up between 8th and 10th Dans. Don't have the time to go looking for it (I think its on Aikido Journal) but Tohei's own description of the promotions talks about the political nature. At the time (oh and Tomiki was in on the celebrations) Tomiki wasn't involved that much at the Aikikai Honbu anymore - he actually declined the position Tohei accepted.
According to Shodokan Dogma the techniques we learn are what Tomiki learnt from Ueshiba M. There is no talk of altering them. Every technique I have seen there I have seen in Aikikai dojos. Training methods are definately different but it is Aikido.