How to do it simply without complications?

Question

1C-Bitrix

There is a bad habit to complicate the solution, I left again and got lost :)
Prompt me a simple implementation of the task. The power grid received an order to register users on the site with the possibility of accepting applications and documents for technical connection to networks up to 20 kV. So that they can register as a sole trader, individual entrepreneur, legal entity, indicating SNILS, OGRN IP + TIN, OGRN + TIN, respectively. And after sending the application, check its status: when it is registered under what number, when the contract is signed and sent by mail, and so on.
Kick in the right direction so that all the husks fly off%)

Answer 1

what is the problem? This task can be solved in a bunch of different ways (through the users themselves, through web forms, through info blocks, etc.)