I haven't read the most recent short stories, so I'm of limited use here.
But if you give me a description of what he's capable of I can come up with some stats.
Personally, I doubt that anything god-level would actually have to fight with mere ghouls. Why not just wish them out of existence?
His son is described as having a huge life aura, which pretty much makes him immune to disease and contributes to his size, among other things. The aura's so bit that a White Court virgin feeds off of him and he doesn't get more than a hangover.
Then Bigfoot shows up, fighting off twenty ghouls all by himself. He's tossing them left and right and comes out of it with a few scrapes and gashes, but hands-down the victor (he actually scared the last few ghouls off, which never happens to ghouls)
He also describes Wizards at one point as akin to "little kids who got a hold of Daddy's gun"
When he leaves, his veil doesn't make him disappear so much as make him, his son, and son's girlfriend become less and less important background characters until they finally disappear altogether.
So I don't think he's plot-level strong, certainly not on the level of Mab or Ivy, but is statting him reasonable in our setting?
just wondering does he actually look like an ape or normal.
Here's how Harry describes him:
I'm in the ninety-ninth percentile for height, myself, but this guy was tall. My head might have come up to his collarbone, barely, assuming I had correctly estimated where his collarbone was under the long, shaggy, dark brown hair covering him. It wasn't long enough to hide the massive weight of muscle he carried on that enormous frame or the simple, disturbing, very slightly inhuman proportions of his body. His face was broad, blunt, with a heavy brow ridge that turned his eyes into mere gleams of reflected light.
Then there's a paragraph basically saying how scary his size is.