Keep Symbosis!
Steps:
1: Find a druid.(Preferably logging.)
2: Have him cast Symbosis.
3: Have him alt f4.
4: Now Symbosis doesn't a range requirement and doesn't go away.(As in when the druid isn't online or near you.)
(I'm also pretty sure if he logs back in and your far enough away the range requirement doesn't go back into effect.)
Note: You still gotta have the druid in your group.