Adoremus in Aeternum sheet music help please

Hi all,

I’m looking for a very specific version of the Adoremus.
I can see that people have put chant versions on here and there is this wonderful wealth of chant versions in every mode.
But the one I’m looking for is for a friend who wants a very specific version.
https://www.youtube.com/watch?v=jeb7W8MSo2E
I realize the man in that video is singing a couple of notes off too. Please ignore that.

Ideally I’d try to convince him to do the common chant ones but he really wants this one.
If anybody has the sheet music this would save me time writing it out.
Ok if not. I am happy to write it out if I have to.

Thanks,

Jes