Finally bribed the monkey to not be so stubborn.
I brought him a whole bunch of bananas from the Phillis (are there bananas?). He was so happy, he immediately hit *all* the open spots on the board. Now I have the full radar package as far as available in mid Feb. '43. Also a nicer deck gun and better hydrophones.
I guess I'm going to bring him more of that stuff the next time I'm around my home base