84 500SEL... bad steering knuckle and brake caliper.. help

[shawnh]

I just discovered that the steering knuckle is cracked where the ball joint is... this explains the clunking I have heard. I was changing the front break pads, only to find the calipers are leaking on the left side... soaked with break fluid. After this I did more inspection and found the fracture in the steering knuckle.

My questions are:

1. Are parts from other 126 cars compatible with the 500SEL, if so which cars/parts etc... ???

2. Would it make sense to rebuild the caliper seals???

3. I also need an axle assembly... should I just throw the car away???

thanks