I had a wild-caught one briefly for observation over 40 years ago at Creswick, Victoria, well before any form of licensing was required for reptiles. Only thing I can really remember about it is feeding it small skinks when that wasn't illegal. It was quite a pretty little snake. I think the white-lippeds could be coaxed to take pinkie mice OK, and wouldn't need particularly high heating as they are more of a "cold-country" snake.
Pete.