SharePoint Configuration and Power Apps Sandpit Setup

I am seeking an experienced SharePoint consultant to set up a SharePoint site for my small business. The site will merge two domains I've procured via Go-Daddy, both equipped with Exchange Business Basics. Additionally, some modifications will be necessary in Entra.
Main features of the SharePoint site:
- A document management system
- A team collaboration space
- An intranet for company news

Moreover, I need to create a sandbox environment within SharePoint for the development of Power Apps and Business Process Flows. The primary purpose of this sandbox will be to design and test prototypes.

Key responsibilities:
- Configure the SharePoint site to accommodate the features mentioned above
- Set up and customize the sandpit environment
- Ensure the site is ready for the development and testing of Canvas apps, and Portal apps

Ideal candidate should have:
- Extensive experience with SharePoint setup and configuration
- Proficiency in Power Apps, particularly Canvas apps, Model-driven apps, and Portal apps
- Knowledge of Entra modifications
- Good understanding of document management systems and team collaboration spaces.