How to install new clutch cable

[lionfish]

I have a 73 super, and the first thing i need to do is install a clutch cable. i figured out that the pedal assembly needed to be pulled. when it was out, i looked through the hole and found that no cable was in the tube, i have the new one, is there a trick for installing it? also, the pedal assembly is "rigged" so thats getting replaced.

Any tips or ideas?