I usually download them from some of the sites i found on here in your mugen world network section, and also from mugen archive and youtube.
The problem is that it is very inconvenience downloading them from mugen archive because there are often multiple versions of the same character but edited in strange ways by random uploaders.
There are also a mixed batch of very good ones from verified creators, but also some bad ones and there is a need to filter out the good and bad.
Also JUS is very popular and as you may know, it is a community within itself in mugen like KOF mugen.
Also it is often hard to download them of some of the JUS sites because of annoying adfly links.
I was wondering if your moderators would consider maybe creating a separate section just for JUS characters?
If you do, I am happy to help moderate it and add links and report on the best releases that are quality as it is a hobby of mine.
Thank you and please tell me your ideas on this :)