There are no restrictions on you in terms of hiring foreign labor as long as you can prove the genuine need to hire them. You need to prove no other Australian citizen, eligible NZ citizens or permanent residents here can do the same job. However, do note that the subclass 132 visa's business program was also intended for you to benefit the Australian economy when you start the business here, so the hiring of locals is encouraged as much as possible. Depending on the type of labor/occupations you require for your business, there are different types of work visas such as temporary skills shortage visa (subclass 482) or skilled employer-sponsored regional visa (subclass 494) or even work and holiday visa holders for short-term work. It is impossible to tell what kind of visas you will need unless you speak with a migration professional who can advise you specifically.
