I never understood the difficulty in getting the Vagyrisk claw. Sure, it's rare, but it's not like it's impossible to get. I'm an insane powerleveller (Meteorain before the first fight with Rufus), and yet I was nowhere near the cutoff point at which the Vagyrisk claw disappears when I first get to the Cosmo Canyon area. It takes a little persistence, and, yes, you have to know it's there. But it's not really hard.
And I did get the Umbrella/Parasol. But I do have an advantage there, because it's way, way easier to get on the PC version.