The point of being level is to keep the weight on the axles equal.
So go to a CAT scale with full travel load in the 5er and get the weights on each axle first. Easy to do with a double axle trailer, but requires a little more back and forth with some math for a triple axle.
If they are within 100 lbs of being equal then do not worry about being a little high in the nose. You can always shift your load some to move 100lbs from one axle to the other. It is more important to keep the weight distribution equal than to be absolutely level.