That looks like a fun thing to optimize. I used to program C with pointers, memory management, etc over a decade ago. You just made me miss it. Though I don't miss the day-long hunt for a memory leak; there is something cathartic, for me, thinking about data structures at that level. Probably why I ...

My poor OCD if something is misaligned.

+1. I like this idea. Save another square of space.

It would be nice to have blueprints available at the start so you can visualize things before you place.

+1 point if they can be saved between games.