Mike,
I took some photos of my 52 burb's rear brakes and tried to get you some good photos of the parts you're missing,
first photo: "spreader bar" below wheel cylinder
2nd photo: parking brake cable attaches to the "parking brake lever"
last photo: shows the "spreader bar", Parking brake lever and the brake shoes. I put it on top of the shoes for a better photo for you.
I have a pair of Parking brake levers I will sell you and I only have 1 spreader bar I'd throw it in also. let me know.
http://picasaweb.google.com/corynolen/52BurbBrakes
