It's a considerable amount of fat. Not impossible by any means, however. The first time I did T-Dawg 2.0, I had to try hard for the first few days to even get 100g of fat (skipped the break-in week since I was already on a low-carb diet). This time around I'm doing it with a few modifications to suit what I've found works for my body. Slightly higher carbs and lower fats, protein still around 1.5g/lb.
Fish oil, olive oil, nuts, eggs, cheese, and beef are your friends on this diet. One of my staple meals was to brown some ground beef in a pan, throw in 2 eggs and let them cook, then put cheese on top. Quick, easy, tasty, and almost zero carbs. Chili powder goes well on this.
Hard-boil 1 or 2 dozen eggs on Sunday and keep them in your fridge. These come in very handy.
Eat plenty of spinach and broccoli. And flax seeds in your shakes. You'll need it. I never count those carbs since it's practically all fiber.