Assuming you want a 2000 calorie intake. 100 grams of carbohydrate will get you 400 calories, 100 grams of protein will also get you 400 calories, to complete the balance 1200 calories you will need 133 grams of fat.

I am just providing the macro nutrient math - not suggesting that you should eat 2000 calories, or more, or less.

An easy way to add protein is with Gelatin. I use Great Lakes Collagen Hydrolysate.

There are plenty of paleo beef jerky products that are soy free. for example.

Lara Bars are a great paleo-on-the-go option. They are the least processed of all the bars I've found (simply smashed dates, fruit and nuts). They're certainly not 'protein-packed' but you can opt for the ones with a higher nut/fruit ratio so you get more protein and less sugar.

sardines and hard boiled eggs

Well if you are eating 109g of protein that is about 436 calories. If you eat about 100 g of carbs that is 400 calories.

If you want a basic 65% fat diet, then it should be 2389 calories from fat, or 265 g of fat.

If you want lower fat, like 50% calories from fat, then you would eat about 1672 calories of fat or 185.7 g of fat

Beware protein bars. All of those bars are made with whey protein, soy protein, gelatin, or textured vegetable protein. ALL of those ingreidents contan processed free glutamic acid. The "g" in msg. Excitotoxins are addictive and cause various body failures. Your body produces all the glutamic acid it needs which is the chemical that fires off between brain cells, to put it simply. And when youg eat glutamic acid that has been freed from it's chain, it enters your brain and causes the nerves to fire constantly untill it kills the cell. Also, it causes your pancreas to produc 3 times more insulin than it should whcih in turn drops your blood sugar and stores it as fat. Scientists know this because they use msg to make rats overweight is experiments that require fat rats.