So, I think this might have some relevance for this topic. Over the last weeks I (with the help of Touhou SE) was able to crack open the dat.led file of the games, which holds most of the graphics and dialogues for the game. I immediately started to translate (copy-paste from the wiki) the dialogues and all other text files. Luckily I didn't have to start with nothing, as a user named Popfan(I don't know if he's here, but he definitely is on our discord) had translated some graphics (like the Trick Nostalgie logo at the start) which he allowed me to use for my Patch as well.
So here is my first version of an English-Patch Evanscent Existence.
You can download it here:
http://www.filedropper.com/dat(Please tell me if the link isn't working)
To install the patch, you need to extract the dat file from the zipfile. Then you go to your EE folder, where there should be a file called dat.led. Delete this file (or move it away) and replace it with the dat folder you just extracted. Now you should be able to play (please inform me if you can't.)
Keep in mind that it is only supposed to be an alpha-version. The game should be completely playable, but there might be some typos or offscreen text, that I didn't see.
Please contact me, when you find anything, that you think, that should not be like it is.