#1 Once the washer came off I just lifted the spring and inner brake plate off.
#2 As I mentioned above I am going to be welding (or more accurately my friend will) on this case so everything must come out. I followed flintknapper's thread directions and punched out the brake shaft, bushing and seal. Also I tapped out the needle bearing that supports the other end of the shaft and removed the main gear.
#3 The empty cases - Juuuust a little busted
I'll take them to a former co-worker who specializes in repairing aluminum cases and such. If anyone can fix it he can.