Finally got round to this and my god what a horrible job for someone who is a complete novice. Took a LOT longer than the 15 min youtube video i watched as a guide
Old regulator cable had rusted through
New regulator in place
Took ages to get eveything back together mainly due to a pain in the arse door lock but finally had a working window again. Minor annoyance is there is still a very small portion of window visible when in the fully down position. A beer and what better tune to celebrate...