Sandwich: Sorry it took so long, but I promoted you and gave you access to the Fenris worldguard.
There are a few ways to get to it.
Method 1:
You should be in plotworld. At the center of plotworld there should be a portal that leads to the overworld. From there you can either fly straight up to Y= 256 in which case you will be auto teleported to the same X/Z in spaceworld, or there is another portal in that small spawn area that goes to space world.
Method 2:
Ignore all that, do /menu, and use the menu system to warp you to spaceworld directly.
Either way, Fenris should be up and to your left (X= -60 Z= 60). We do have prism running in case of particularly nasty mistakes.