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I was able to get up using a combination of the X-52 Rocket Helmet (from Area-52) and a Goblin Glider Kit. You can't steer while falling with the Helmet, so I stood in front of the building in line with the hay door. Then I blasted off, and when I fell back to the height of the door, I popped the glider kit (while facing the hay door, of course). Keep in mind, the Helmet has a half hour cooldown, so take the time to line up carefully or you'll be waiting a while to try again.
Found two spawned at 2:30 in the afternoon on a Monday after combing the area several times over the last hour or so. So it seems that after a server reset is not the ONLY time, but perhaps still the best time. Thankfully the first one I hit was rare. Leaving the second alone for another farmer.
Edit: Found 3 more. So, there are spawn cycles aside from the resets. They get snagged fast though...