season 2/3 Scoobies go 100+ years into the future

I remember this one shot I read ages ago where, after season 2/3 Scoobies plus Wesley kill the creature of the week at the golf place (I think, maybe I'm mismatching fics), they somehow get sent 100+ years into the future, where we find out the Scoobies plus Spike, have turned immortal and are only able to be killed by decapitiation. I remember Future!Cordelia was angry at Angel or Oz for chewing on her shoes and asked Past!Willow for help, and Future!Giles mentioned Spike remembering every book on the supernatural, I think, to help Buffy. Oh, and when Spike sees Past!Buffy he freaks and tells Cordelia, because Buffy was killed by some creature feature a few years back, obviously through beheading. That's all I remember, hope someone can find it! Thanks, C x

sounds like an interesting story - wish someone knew the title I would like to read it.

I remember this fic... Buffy didn't duck when she was supposed to and had been dead for about 50 years or so... When they return to their time the story jumps to where Buffy remembers to duck I think. I know I read this one on fanfiction. Net but that's all I remember