My parents had an antique electric coffee maker (similar to the photo) sitting around as decoration. After a clean up and a new electric cord it was up and running. The grinding mechanism is probably similar design to yours.
Even at the coarsest grind it was still too fine, I had to take the knob off and back it out an additional couple of turns to get an acceptable grind. My guess is that will be your biggest issue. Pick up a couple of pound of two row and give it a try in advance of your brew day.