You don't have to eat a large quantity of fat to get 65% of your calories from it, because fat is calorie dense food. Track your meals in FitDay or something similar, to see where your percentages are.
If you eat more calories than you are consuming, be it in the form of fat, protein or carbohydrates, you will gain weight. You do have a metabolic advantage on Atkins, which allows you to eat about 300 calories more than on a "regular" diet, but that's about it. However, ketosis brings along appetite suppression, so if you eat only when hungry or when you went for 6 hours without eating, then you should not worry about counting calories. On the other hand, if you have the tendency to overeat, it might be good to keep an eye on calories.
It's quite easy to get the necessary fat in your diet. Use dressings on salads (no sugar added, less than 2 carbs/tbsp of dressing), a dip for vegetables, some cooked veggies, plus eggs, olives, avocados, cream... The fat adds up fast.
About inches. You can post your menus in the "Review My Menu" forum and then we can see if anything there can be improved based on Dr. Atkins' Rules of Induction from DANDR 2002.