They're all relatively close. You would want to get a new flywheel or have your old one resurfaced upon replacement of your clutch. Usually they will need replacement if you can see any cracks, burns, pits, or blueing.
Same thing, with less postage. I think it's a stock pressure plate that's been painted, pretty sure your mostly getting the lighter flywheel and clutch pad. If your just going to use it as a daily I wouldn't go anything over a stage one I don't think its nessary
If it's just for a daily driver, I would recommend just throwing in an AutoZone special as they are cheap enough. If its not too bad, I wouldn't even sweat over the flywheel. Ideally, yes, you would put one in but for a car with such low horsepower as long as the flywheel is majorly FUBAR I would re use.