I would try Google first. And then contact Fair Work, they have all the rules and regulations regarding work

There may even be online small business support groups with information?

Maybe it is a good idea to get in contact with a small business organisation. People do run these services that help people with information on small businesses. May be helpful?

Thats a hard one. Running a small business effectively with all the accounts, insurance etc. to sort out. (You need public liability insurance for all sorts of things in case you cause a problem for someone, but maybe there is more as well). Is there a book in the library about starting up such a venture? There could be a lot more to it than just insurance. Good luck with taking such a positive step. Let us know how you do it!