Here's a little tutorial about the script that I uploaded yesterday.
The source objects are the brush objects in Fig.1. The red one is the foreground (last drawn). And the distance between the farthest removed objects is about 88pt.
Select all the brush objects, then run the script.
A prompt dialog appears. Input 80 and hit OK.
Fig.2 is the result. Paths are separated because the distance between the nearest object is longer than the specified value (80pt).