I have the same leak and a new caliper ready to go in. According to the factory service manual when the caliper leaks fluid there it is time for a new one. If I get mine done in the near future I will post some pics. It does involve taking the tension off of the e-brake cable and disconnecting it further up. Then, you can disconnect it from the caliper.
Where do you disconnect to take the tension of the e-brake? Do I need a special tool?
I have everything off, just cannot get the emergency brake cable off the caliper.