I spent a little time in Fritzing to lay out my keypad just to be sure the spacing was good and make sure I had the right idea before wiring it up. Fritzing has many problems, but it is wonderful for laying out pretty circuit diagrams and breadboard/protoboard stuff.
Having convinced myself that i had wasted enough time, I sat down and actually wired the thing up. It didn't completely fail to resemble what I drew, but it wasn't exactly the same either.
Finally, I wired the whole thing up and did a test:
It's a trap!... I mean, it's alive!
Satisfied in a job well done, I went to bed. When I woke up in the morning, magical elves had snuck in and somehow debugged the TFT display!
While the screen isn't currently doing anything important, I will want it eventually, so I need to wire this up in a more permanent way. And I need it for Saturday... if only I had access to a PCB mill...