I neglkected to say - it may be easier to remove the fabric cover before the stringing work and to put it back on when you're satisfied that it works ok.
If you find it difficult fastening the free ends of the cord firmly to the post, a jubilee clip around the pole trapping a simple knot may be an easy solution.
The cord at the pin end might be clamped with a few small, plastic cable ties.
Continuing good luck...
Peccavis conscience, July 2009