As posted by box head above vsb14 has most the requirements, but some of its Australian design rules (adr's) references are out of date. The ADRs provide the rest of the information.
https://infrastructure.gov.au/roads/...dr_online.aspx
You will need to check up on the importing rules. Treeve on here has knowledge in this area as he's done it from the uk, but I think it needs import approval.