Nessus Client - .NET Core

I need a c# (.net core 2.2) that simulates a user creating/editing/deleting policies/scans on tenable nessus 8. The available api for easy management does not allow to create/edit/delete policies/scans. So you must identify how the web interface works (you can create a trial version on theirs website for the professional on-premises version) with the correct POST and data for each action and create a console application that is able to create/edit/delete policies and scans. I need this to be done in less than 7 days. I must have a unit test that have each action and test if it was successful.