Oh, cool, another Portlander Parront!
I use Tiki's cage (my beloved Sennie, whom I lost last Summer) and her cage works quite well for Chance. I had it steamed cleaned/disinfected at the Avian Medical Center -- they are so awesome! Chance is mostly out of the cage anyway, but she is quite petite for a Grey, as she is only about twice the size of Tiki.
Hehehe, yeah, I'm at the Bird Hut all the time, as I buy my supplies there

How old is your Grey? And aren't Greys awesome? I love Senegals so much, but they're so different than Greys. Tiki was bold in personality and an amazing climber, whereas Chance is a perch potato and is clumsy, so I have to be careful when she is on my shoulder as she can easily slip off. Chance has a very large vocabulary which never ceases to amaze me, but I also loved my Sennie's tiny voice.