Well, the facility in question needs to be authorized to do an err sweep/pull. Just because the rep or atm says they need staffing doesn't mean HR and FAA higher ups agree, so the err pull might be denied by HR.
There was a grievance out of one the regions (I believe my own Western Pacific) that pretty much ended up being upheld that determined they have to let you go pretty quickly (a few PPs). I'll see if I can find it.
some might have changed this list is from 2011ish i think.
You would start at D2 at a level 6. Additionally you get 27.88% locality and 8.5% CIP at CMA.
You ballpark would get $62359 plus $4144ish of CIP ... give or take a thousand. And not including differentials