VERY nice shematic Simon. Do you have the profile and plan as well? I've had a wonder about what the bottom of the array looks like.
A couple of things perhaps of interest.
While I was looking up the 37mm FlaK for Le Bosco, I came across a site with comments from the Germans that apparently the admiralty had a great deal of trouble getting U-boat commanders to actually use their radar sets. The problem was that after the problems with the 'Biscay Cross' detectors, U-boaters came to believe that the Allies had radar detectors that could locate any German radar sets in use and vector in aircraft. They didn't trust command assurances that German radar operated on different wavelengths and preferred to use their passive detectors (which had a longer range anyway) rather than transmitting a signal that might be intercepted.
Unfortunately, I didn't save the URL but if you search on 37mm FlaK, you might be able to come up with the same site that I'd found about equipment.
The second little tidbit of interest is that one of my neighbours recently got fed up with paying for TV cable and satellite, and went back to the idea of an antenna. When I saw the antenna, I couldn't believe it. It was almost exactly like the radar receiver you have pictured above. The major differences were that it had quadrolpoles instead of dipoles, and the frame had only the horizontal bars with a central pole and not the vertical bars on the sides like the German set. But if you mounted it on a lifesized U-boat replica, only people such as ourselves with more than a passing interest in detail would notice that it wasn't the same.