I haven't done a true max in a long time -- like over a year -- but based on my recent workouts, I'd estimate somewhere around 315-225-400. That's a 940 total, with the real value probably +/- 15 pounds from that. I still have 12 weeks to get prepared, and I've been seeing some good gains recently, so I think getting in the upper 900s is very realistic, with 1000 being a more ambitious goal to keep me focused.
I don't have any meet experience, so I'll have to adapt to the challenge of doing my lifts on someone else's schedule, picking openers, etc., but that's part of the fun.
Just for the record, I do all my lifting totally raw (not even a belt, since I don't own one), and that's how I'll lift in the competition.
"The enlightened never cease forging themselves."
-- Morihei Ueshiba