RQ: Bad Romance final chorus filtered vocals

[Doriro 38]

We seem to have the Bad Romance vocal stems, but I couldn't find anyone that managed to isolate the lead vocal of the final chorus (where Gaga obviously added different vocals in addition to the other chorus's, going higher in the first bar). Is anyone capable of isolating these? I'm trying my best to do some magic in Audacity but I'm failing miserably (trying to invert the vocals of the second chorus on top of the third).

Thanks!

[communistmanifesto 63]

https://m.soundcloud.com/spookytanooki/bad-romance-dlibs

[Doriro 38]

9 hours ago, communistmanifesto said:

https://m.soundcloud.com/spookytanooki/bad-romance-dlibs

Thank you <3 
I have been wanting this for about a decade.