I have used a circular saw to cut away the planking where it meets the upright studs then a pry bar to remove them to expose the nest. I also have a bee vac which is very useful. But you should be able to remove the comb and will probably get the queen on one In the case of the one in the...
I have identical nationals running a brood and a half. I bought a set of digital luggage scales and hook these under the back of the hive and lift it about 1" so that the hive pivots on the hive stand at the front. I weigh each hive in this way with it's omg floor, brood, super, and crown board...