Hey vigi, nice team and a strong position on the ladder you have there!
You mentioned Gligar was a weak link on your team. I can see 2 solutions to this, which are either U-Turn or Toxic over Stealth Rock. Toxic will help you get some damage on pokes, whereas U-Turn could work as another way of getting Rhyperior in safely.
Without SR on Gligar, I recommend SR on Rhyperior. It may seem odd having SR on a Choice pokemon, but since Rhyperior forces so many switches, it may be worth a try.
That's all I can offer. Hope I helped!
Just waitin' for June 2nd now...