Rear Sway Bar Only?

So I finally got around to putting in my rear Koni Yellow shocks into my 850R sedan (to match the Koni Yellow struts I put in half a year ago)  WOW, what a difference!  The car just feels so nice to drive.

I've been wanting to do the sway bars, but the front sway bar installation is beyond my scope.  But a friend said that the rear sway bar makes the most difference, and that my R came with a decent stock sway bar in the front.  And a stiffer front sway bar may give me more oversteer than I like?

So I was wondering if anybody here has only installed the rear sway bar and how is it?
And does IPD sell the rear sway bar by itself?

thanks