I agree with Mikesh; I'd also get the Pringle rep out to look at it ahead of time so you could get all of the parts needed to fix it ordered and on site before you schedule your shutdown.
You should be able to have the POCO pull their OCP, open this guy, then fix this and get the power restored.
Based on what it looks like in the picture, you're probably looking at a 6-8 hour outage.
I've had decent luck with our local POCO if I ask the lineman to kill the power first thing on his schedule and come back right before the end of his shift to liven it up again.
