Managed Stopwatches in collection (DotNet Core 2.2) -- 3

Hello developers, I would like you to develop the requirements stated in the attached specification. Required experience: DotNet Core 2.2, ConcurrentBag collection, Autofac dependency injection, NUnit unit tests. I will supply you sample source code on how to implement DotNet Module loading with Autofac. Deliverables in DotNet Core 2.2 I need this task delivered in up to 4 days. Budget: USD 40-50 (max). Thanks for bidding.