Russ,
You will need an A/B/C 7 style head. Here is a close-up pic from the Batlabs website. Although not the correct configuration (notice the buttons above the display), they can be switched out once you find one. I'll add this info to the resto doc as well.
Here is a link to their website, also. Tons of good Motorola radio info there.
http://www.batlabs.com/