Get the white knight perk card to 3/3, repairing becomes a lot cheaper and your armor breaks much more slowly
Wasted perk to keep them slotted tbh. Armor has far too few hitpoints. If you fight a scorchbeast you will hear the "armor broke" sounds so fast, it will make you cry thinking of the costs.
Better to not get hit at all and use the armor for stats and deep pockets only. If you want to go rambo, use power armor. The game does not tell you that each piece of power armor worn gives a hidden 7% dmg reduction and 15% radiation. That's 42% dmg reduction and 90% radiashun for a full set. Before armor rating, lone wanderer etc. That's why PA is so much better than the armor rating suggests.
Only slot white knight AND "fix it good" for 200% condition when repairing. Same goes for weapon artisan for weapons.
Protip if you want to use power armor a lot: the T-60 is dirt cheap to repair, all the others are sometimes even cheaper to build new. But Beth changed the costs for the T-60 a while ago. Only needs steel, plastic and aluminium. And a little circuitry for the bucket