I completely understand weariness about someone wanting to borrow your equipment and go make a movie with it.
I want to assure you my intention is a lot different. I want to collaborate with people who not just participate but also contribute creatively to the work. People will most likely have multiple roles, actor/writer being one example. I don't want to try and pretend I am an expert in Kendo, I will leave that to the Kendo people to lead and choreograph so that their art is represented faithfully.
I just have a camera and an idea and am looking for people to work with to do something cool on film.
Shodothugs and aikibunnies are welcome, there is definitely a mystical element to the idea that would appeal to the more spiritual people as well as fighting and gore that will appeal to the jujutsu minded.
Just to give you a very rough idea of the concept I have, think Lord of the Rings meets Mad Max. Not a perfect description but good enough for now