You said "Maintenance Calories" which is the amount of calories you need to eat in order to neither gain or lose weight. So by doing that, you're not going to gain or lose any weight. And you said "TEF = fat used for digestion"? That sounds retarded. I'm assuming by TEF, you mean "Thermic Effect of Food". But "Fat Used For Digestion" is quite mispoken. You burn calories during digestion, you don't burn fat.
And you're way off with your "thermic affect" numbers... You think 20% of whey protein calories are burned trying to digest it? Try next to ZERO%! A dense steak "might" be close to 20%. Chicken would be less. And Fish would be even less. As for carbs, also depends on the type, but 4% would only apply to extremely easily digested carbs, like sugar and white bread.