Calories in a Derby Roll?

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My favorite place to eat is our local Japanese steakhouse. My husband and I sometimes go there for lunch and get soup, salad, and a sushi roll. My absolute favorite thing to eat (even over cookie dough cheesecake from the Cheesecake Factory!) is their Derby Roll (Deep fried shrimp with cucumbers, avocado, topped with spicy crab, tempura flakes, and unagi sauce) but I can't find a calorie counter anywhere that has a derby roll listed. I have no idea how many calories are in it or how to figure them. Can anyone direct me to a website that can help me figure out the calories in sushi rolls or one that might list a derby roll? I know it's not the healthiest of all sushi rolls but it's my favorite and I'd like to know the calories in it so I can work it in to my eating plans.