The documents they asked for are everything to do with finance such as loss and profit, training bench mark, etc.. My employers got their account guy to prepare all of it ( about 13+ pages). We even threw in the business lease contract which is an extra. I work a cafe and for same employer, they would ask to see if you get paid to same wages as 457 visa but that will be before all the hassle from COVID-19 restrictions started.
At the end, I mean when they request for more documents to support your case, the more you give the better chance to your case, spend the money on the account to prepare your paperwork because they are reliable and certified with the business’s financial.