You'll get bashed by those saying git good etc.

But you can use console to 'fly' there and grab your gear. Or, the corpse retrieval lot might still be working.

I generally go ott on building moats, walls etc for my base. But for the portals, I sometimes put them in their own little extra protected place.

I would get back there soon, as I heard all items on the floor not within a workbench area despawns after a few days.