In the game folder for the himawari patch, there is a file called script.rpy. Drag this file into the game folder for Takei's Journey. When you get the prompt to merge or replace, choose replace. Then, copy all the .mkv files from the movies folder in the himawari patch and paste them into the movies folder in Takei's Journey.
If you (or whoever else is reading else) doesn't know how to access the files for Takei's Journey follow these steps. Right click the application and click show package contents. Then click Contents > Resources > autorun > game. This is where you can find the original script.rpy file and the movies folder.
Hopefully, this makes things clearer.