Step 1
In a medium-size, heavy saucepan with a tightly fitting lid combine the rice, and 1 cup plus 2 tablespoons of water and bring to a boil. Stir in rice. Tuck the thin ends of the fish under and place on top of rice. Cover and cook on low heat until rice and fish are cooked, about 18 minutes. Remove from heat and let stand for 10 minutes.
Step 2
While the rice and fish are cooking, stir together 2 tablespoons vinegar, 1-1/2 teaspoons sugar and ½ teaspoon salt. Transfer cooked fish to a plate and cover to keep warm. Toss the rice with the vinegar mixture.
Step 3
At the same time, toss the cabbage and cucumbers in a large bowl with the remaining 1/2 teaspoon kosher salt, the remaining 1/4 teaspoon sugar, 1 tablespoon plus 1 teaspoon vinegar, ginger, and sesame oil. Season with pepper.
Step 4
To serve, divide rice between bowls, top with the fish and the cabbage salad, radishes, avocado and lemon wedges. Sprinkle with furikake and togarashi.