For reference here, the United States’ Iowa class battleships created around the same time, while of similar length, weighed about 40% less.
Speaking of anti-aircraft guns, ultimately these ships were equipped with approximately 150 25 mm guns.
In between these and the massive 460 mm cannons previously described, the ships also featured six 155 mm and 24 127 mm guns.
While not the fastest battleship in the world, this compared favorably to, for instance, the aforementioned Iowa class battleships that weighed about 40% less, but could only go about 6 knots faster.
These ships, if constructed, would have possessed 510 mm guns, displaced upwards of 82,000 tons and could have moved at speeds approaching 30 knots.