About time I'm getting around to posting this... Last week from about Monday through Thursday was spent replacing all the bushings in the rear with poly, and attempting to install a LSD and RT mount.
The LSD was a bust, come to find out it requires 30 spline axles, where I have 29 spline. The seller was unaware of this, and everyone is trying to work toward an affordable fix. For now I've put my old R180 back in, and it'll do fine for now.
The rear shocks were completely blown, and the diff mount was separated, allowing the diff to rise up about 1.5" and slap the retaining strap every time I accelerated.
So, with new poly bushings, the updated diff mount, Mat's old cut springs from flatblack, and his old tokicos, the car is SOLID. We also pulled the spindle pins to replace that joint's bushings, which is nice to have done. The pins were actually in good shape, so I reused them, and need to sell the ones I bought.
Now it's a completely different car to drive, I LOVE IT.