Thank you, I am going to take
@josh2203's suggestion of Torre Alta, promise the girlfriend not to damage the car and do the practice in Torre Alta.
Then drive to Jumbo the next day and then to Malecon via the roundabout so slowly add more complexity (and danger levels) and then do a trip to Santiago for highway driving and more city traffic. The parking I can do quite well (UK city parking can be quite challenging, especially central London) so going to ditch the instructors idea. Will try to get the highway code equivalent booklet here and give it a read.
Thanks
@drstock and
@josh2203