A document checklist generator for every document the registry will ask for, in the order you need it, with who issues it, whether it must be notarised or apostilled, and what falls due after incorporation.
Rejections are rarely about the company. They are about a document that is the wrong age, the wrong language, or missing a stamp nobody mentioned.
Know what the filing pack costs, what the tax bill looks like, and how this jurisdiction compares before you send anything.