The clip that Phi pointed you towards comes from the Irimi video that Ikeda Sensei sold for many years through Bu Jin Design. When DVD's pushed out videos, all four of the Bu Jin videos (Irimi, Za, Koshi, and Buki) were put on one DVD. I don't know if copies of the videos or DVD are available on eBay; I have not heard anything about any plan on Ikeda Sensei's part to make that stuff available again.
I always had Ikeda Sensei on my "priority list", maybe due to Pranin (earlier on my Aikido career) or to Saito Sensei (whose style i really adore and reflects resemblance to many, IMHO). It would be worth to try and obtain the videos you mention. Thank you Matt.