I have this UTAU wich can sing in Japanese, English, Spanish and fictional languages:
https://utau.fandom.com/wiki/Heccan
The wiki doesn't have any voicebanks up for DL right now because I still have to re-touch some stuff in them, but I can give a "beta download" of the voicebank.
The folder of the voicebank would include instructions on usage, since she's made specifically for Spanish speakers who want to write English lyrics but can't learn the current systems for English UTAU VBs.
There are no plugins for edition and she requires manual adjustment on every UST, but if used well, she can give very good results.
I can send recent samples of usage (from this year) so you can have an idea of her sound.
The reclist used was made by my own hand, as well as all the configuration and recording.
I recommend to not try recording any voicebank with it, as it is very outdated and needs many adjustments, it was a test.
Basically, I would prefer that nobody uses her files to try and reconstruct a reclist without asking me personally first.
EDIT: If you reached out to me for the VB but I didn't reply, try to contact me on Twitter or DevianART, I don't visit this place often