Look at my 356 brake conversion pics in the "Photos" section. I Rebuilt (using some VW parts) and installed 356B drums on my car and it is not that difficult but I can make it much, much easier for you. My car now stops on a dime and boy, I feel so much better now especially with my powerful motor. I can walk you through it if you are interested. I can tell you exactly what you need and I might have a few extra parts available.
Thanks,
Tony