Sway Bar Question?
Anything you can purchase from Addco, Hellwig, Quickor is going to be fine for a a street driven vehicle. I would just recomend that you purchase the front and rear from the same company, that way you are sure to get the best balance.
There were no rear factory bars so all the kits come with brackets and hardware to attach it. Drilling will be required. Since the fronts did come with bars there are control arms out there that have welded on tabs for the end links to mount. Most of the kits also provide a less then ideal way of attachig the bar when you don't have the factory brackets. A welder is in order to make the attachement more secure but you can use the kits method if you don't have access to a welder.