So after the new super fence went up - the garden looked like this:
I placed roll log edging round the lawn, and reseeded where it was bald. The pond still needs finishing off at the back, but that could be as late as the end of the summer, hence I couldnt wait any longer, filled the pond, added plants, then kids picked some wonderful fish yesterday - they are now swimming happily in their new home (the fish, not the kids!)
Also a treat for me, a wonderful metal lizard for the new fence - I love him.