Absolutely correct I used to be a FO on Comet IV's with Dan Air , great aircraft very reliable , very much overpowerd excellent hot and high performance, even losing an engine during take off was hardly noticable.
It could easily cruise on three engines at M.72 altghough not legal you could safely stretch the range by shutting down one engine.
I don't think the Comet IV was ever registered in Australia , it was the worlds first 4 engine jet airliner the B 707 came next . An unfortunate series of accidents with the Comet in its early days caused airlines to cancel orders and go for the B707 instead even though the early Comet problems were fixed.