Actually Red Bellies aren't too bad as our snakes go. A bite can make you pretty sick but deaths are rare. The Australian Museum says: For its size, the Red-Bellied Black Snake is probably the least dangerous elapid snake in Australia. Despite the number of bites received every year, very few human deaths have resulted (most death records date from early times and the snake's identity was often unconfirmed).
Yes, and the #1 killer snake in the world is actually a sawscale in the Middle East... no where near the most venomous. I wouldn’t want to take a bite from it or mess with it, wouldn’t want it hanging around my home, chicken coop, pets or kids. And nothing gets to eat my chickens or chicks with impunity except me!
Many things factor into snakebite mortality and damage, availability and access to antivenin, amount of venom injected, time before treatment is received. All of which are pretty decent in most parts of Australia, so I wouldn’t be terrified of a bite, but would really want to avoid one.
Every venomous snake needs to be treated with a healthy respect. Also, the only time that a snakes identity is considered confirmed is when the snake is brought in with the victim. There are often long term effects from even non-fatal bites in many species. For an elapid the Red Bellied Black snake is considered fairly docile and not as “aggressive” (usually people who don’t understand snake behavior) or as venomous compared to say a mamba, water cobra, or king cobra, taipan, or a brown snake. Still, respect the venomous creature...
Short of the western hog nose, I consider all venomous snakes extremely dangerous, hemotoxic and nuerotoxic, even other rear fanged ones and those known for dry bites (I don’t think there are any of those in Australia though). I haven’t had the opportunity to see any Australian snakes first hand at all

only North American ones in natural settings, and some South American in exhibits, but it is a personal dream...
I’m both jealous of the OP’s situation, and concerned. Probably, because the only elapid I’ve seen in a natural environment is the coral snake, and the rest have all been large Rattlers. Probably, I just over-react because I haven’t dealt with them extensively in my own day to day (again, so jealous of you all in Australia!). But if I had our only venomous snake here (the Massasauga Rattler, only 1 confirmed death, and an endangered and highly protected species) hanging out by my coop, I’d look into relocating it!
