I started up the other end here, without any intent of going beyond the maintained trail, but I did wonder whether the route from the west is feasible. Do you happen to know?
I haven't heard of anyone doing Griff or Unicorn from the west but looking at the map it seams feasible. I wish I had a better answer for you. It sure would make a nice route page. Do you mind if I attach your trip report to the pages for these peaks since then are in the same area? It migh give someone the idea to try this route.
I just attached the TR to this.
And to all of you out there in Internet land, let us know if this route up Griff works!