Sway Bars

I am lucky enough to be getting a free 17mm rear sway bar from a P71 to install on my car. It includes only the bar, however. What end links, bushings, and clamps do I need? Or are the clamps a part of the bar or axle (I didn't look yet).

Will Energy Suspension end links work? And if so, what size will I need?

Now with that out of the way, would it be necessary to upgrade the front sway bar for safe handling or would it be okay? Right now I have the 27.0mm front sway bar, whereas the P71s have 29.5mm front bars.