React JS website, with vertical collapsing menu. Needs API integration from .NET platform

Hi, I need to make a – website, where in all data is getting pulled from back-end, which is in .NET.
I will provide bootstrap template & wireframes & color-theme & logo & images.
Approx. 25 pages, with – user login, sign up & dashboard, features.
Payment gateway, too will be added.

Need it in 20 days, max.