Agreed, no use cutting weight if this is your first or second meet. In my opinion, no lifter should worry about cutting weight if they aren't already at a competitive level Nationally...but like I said, just my opinion. As well, no lifter should be cutting weight via water loss if they aren't already fairly lean in the first place. There's no good excuse for being a fat powerlifter and trying to cut 10lbs of water when you could lose 30 in bodyfat.
Continue with the sound diet. Keep non-training days fairly low carb, with carbs slightly higher on training days to fuel the taxing competitive cycle workouts. If you're not within one or two pounds the day prior then make body re-composition a goal next prep cycle and lift at what you weigh day-of.