I don't know if you are still interested in beta reading, but I'm posting this anyway just in case you or anyone else is.
I've spent the last week revising this story, so there shoulden't be any major mistakes in it.
Nonetheless I would feel better if someone threw a glance at it. You can find the story here:
https://docs.google.com/document/d/1Y1I6tdbz9vOcIlpfRryC2Iv8lskIDLVLYlhxWISRdW8/edit
You are free to correct any mistakes you find.
PS. I shall publish this story today.