That's the kind of fit you need. Assuming the rear wheels are also a perfect fit for the different-size hub in the rear.
There are lots of topics on the boards about this. If your timing belt and radiator hoses have never been changed, I would do those right away. 19-year-old belts and hoses have a tendency to dry out and crack or otherwise fail. The timing belt could be a catastrophic failure (VERY expensive, possibly requiring an engine replacement). The hoses will give warning when they fail, but even so, it will probably be at an inconvenient time and place, and if you continue to drive after they do, the engine can overheat and again become a very expensive failure.
If they have already been changed, it depends how long it's been. Acura's recommendation for the timing belt replacement on your '95 is 90K miles or 6 years, whichever comes first. I'd do the cooling system hoses at the same time, since you're probably replacing the water pump and flushing the coolant anyway, when you do the timing belt.
No, it doesn't. Offset is the measurement for the positioning of the wheel, sticking out from the car or "sucked into" the wheel wells. It works with the width to determine clearance in the wheel wells (not the spokes clearing the calipers, but the outer "barrels" of the wheels clearing the suspension and the tires clearing the inner wheel wells) because it measures the distance between the center of the wheel and its mounting surface, as illustrated here: