That one looks ok, but the crown is only 5 inches open. That's a half inch under the Indy height, so it will not look very Indy. That aside, it looks quite nice.
I like it a lot. Is this one of the hats made by Guerra? Would be nice to see it after you style. You'll probably be flayed and/or stoned here, but it's nice to see something other than the standard offerings with Indy-like bashing. And, after all, Indy was created as The Man in the Gray Hat.