So, there are alium raids in Bor as a semi regular thing, i guess it's fun to have human run special events, there are however a bunch of problems with the location you have chosen, i don't really feel the need to bring them up, i am fairly sure that it has been mentioned before on these forums and i remember reading something about a mass protest in the olden days, were players were up in arms about ARKs and GMs disrupting their gameplay in various creative ways (long before my time).
Instead i propose an easy fix, get the devs. to give you the tool to create a teleporter/portal maybe with the clever little dropship that hovers above the entrance to iCities, then run the event at another playfield, spawn an "usher NPC" that spams vicinity with a call to arms against the green menace, this way you can run raids and events with no one getting ticked off by idjit snares in Bor.
As an added bonus this makes it possible to host events that are not *intended* to be PvP-events in high gas areas were the efforts of flag-trolls will fail and resources permitting you could do level-range separated events on several PF's in order to let low level toons actually dress up for teams and raids without that 220 NT accidentaly killing their entire mob allowance with a couple of VE's.