Parking Brake Cable Replacement

I'm trying to replace the parking brake cable in my '67 Dart convertible. I finally got the old broken cable out, after lots of cursing.

How in the f@&k do you get the new cable threaded blindly through all the damned twists and turns of the frame near the torsion bar crossmember without disassembling/cutting apart the damned car??? The cable fittings get hung up on things I can't even see, and certainly can't reach. I've tried going in from the top and the bottom, neither works for me. They HAD to have redesigned this on later models, right? It seems impossible to replace!!!

I need to get this done in order to get it inspected. Do I have to pull the engine, torsion bars, and shifter linkage and get the damned car 10' in the air on a lift just to do this??? Pretty frustrated right now.