I've managed to get my Franklin to the point where it can boot off of the FloppyEmu (which required modification of the video circuit; I'll write that up at some point). Now it's time to get all of the peripheral cards working.
The 80 column card ("4039047REV A 1100047REV") doesn't seem to match any documentation that I can find, and didn't come with the card-to-mainboard cable. Rather than one RCA jack and one three/four/five-pin header, it has the RCA jack and two five-pin headers. J1 has pin 5 removed and ground on pin 2, and J2 has pin 4 removed with ground on pin 1.
Before I started experimenting, I thought it would be a good idea to ask if anyone knows how to wire this board up.
Picture of the board: