I weight 83-85 kg and my height is 183 cm.
Then you're clearly not eating enough food if the meat and the fat and vegetables is all you have. I would look into increasing food intake as the main cause of your constipation might simply be from not eating enough food.
I am very much interested in AV recipes for getting rid of constipation. It is a nightmare for me. Such recipes will surely help me in emergency.
The most extreme and helpful one was the one you should insert up the rectum, and it consisted of 1 tablespoon each of butter, dairy cream and coconut cream, with 1 teaspoon honey, all mixed together and warmed up to body temperature or slightly higher (but under 41C), and the idea is to lay down in such a way that gravity helps the mixture go down, and move your stomach around like a belly dancer to get the mixture to move towards the colon. It's better if the fats are high but not necessary. For most people doing it once a week or even less was enough, while some needed to do it up to once every 3 days. The mixture can be refrigerated, but make sure to warm it up (just not too much) before use.
Then there was the temporary emergency fix, which consisted of 2oz chia seeds, soaked in good quality water for 24hs, and then added to a lubrication formula and eaten like a cereal with a spoon. A lubrication formula consists of blending together 1-2 raw eggs, 2-4 oz butter or coconut cream, 1-2 tbsp lemon juice, 1-2tsp honey. All ingredients should be at room temperature and then warmed up to body temperature before blending for about 10 seconds. You're not supposed to blend the chia seeds though. That would be bad. The whole point is that you won't digest the seeds when eaten like this.
A more aggressive temporary fix was to quickly drink a combination of 3oz stone-pressed olive oil, 2oz milk, 2oz apple cider vinegar, 2oz honey, 2oz lemon juice, and then placing a hot water bottle on the stomach and breathing deeply and slowly.
Other more general recommendations included eating a small amount of high meat twice a week, eating lots of butter, also eating moist sundried clay. Or up to 1tsp moist clay and 1 marble-sized portion of high meat once a day for 14 days, then once a week after that until the constipation is solved. He also said that whole vegetables/greens cause constipation on a raw diet, and shouldn't be eaten more than once every other week, and usually as the last meal of the day only. He favored vegetable juices instead of whole vegetables. (bland fruits like tomatoes are not vegetables in this sense, they are fruits, with all their benefits, and without the detriments of high sugar content, however you still shouldn't eat large amounts of bland fruits like cucumbers with your meat as that would still throw off the acidic digestion required for meat. Tomatoes are ok however, since they require a neutral ph digestion so can be eaten both with acidic or alcaline foods.)
Another temporary remedy he recommended was blending a green apple with 5-8 tablespoons of an oil pressed under 35.5C (which is almost impossible to get nowadays), the juice of half a lemon or lime, and 1-2tbsp honey. Another possible solution is simply to drink grapefruit juice. Another one could be to drink a mixture of 6oz hot water (no hotter than a finger can stand when immersed for 3 seconds), 4tbsp honey, 3tbsp raw apple cider vinegar, and the juice of 1/2 a lemon or lime. Still another one would be to eat unripe pineapple while drinking 5-8 tbsp stone pressed olive oil or 4tbsp flaxseed oil pressed under 35.5C.
Still another one, similar to the high meat, would be to eat high eggs. They can be prepared inside the shell. Poking a hole to let air in would speed up the process. One or two should be enough.
Needless to say, all the ingredients should be raw/unheated/unpasteurized, or they may not help at all or even cause the opposite effects.