Keep the bars!!
Years ago I bought a set of Addco bars for my then nearly new 1971 Valiant Scamp with 225/6, 727 and 8 3/4 rear. The bars came together in one big box and the front links were lost in shipping. So I installed the rear bar first and made my own front links. While it had only the rear bar in place, the car would oversteer. It was very entertaining! When I finished the front install, the car handled flat and great. Back then I did time & distance rallies on public and Forest Service roads and it would handle with the best of the European and Asian brands. I lost the car in a divorce and wish I had it back! I think the reason your bushings have worn out is because the front bar is doing all the work and if you had the rear bar on you would have the right combination and it would work together