Cabin heater wire broken

SW20 1994 GT with climate control -
 
So apparently my cabin heater/temp dial wire is broken at the cabin control end (according to mechanics). It's sticking out into the front bay onto the heater lever there and seems fine at that end.
 
How easy is it to rig something up to reconnect it? I assume I can't do it from the front bay end, and will have to pull the centre console apart? Any handy guides? Will i need a whole new cable, and if so, are they easy to find?