Thank you Greg for the information.
Thank you Don for correcting me, and for the information.
That movie is available on YouTube, and I have watched it.
Here it is with English subtitles:
https://www.youtube.com/watch?v=NdD6DezelBs
There is also an interview with Yohei Hinoki from 1981 where he talks about the Ki-43:
https://www.youtube.com/watch?v=u-eBmnpCO18
Thanks again, and looking forward to your build Greg.
Gary