Modernize App with Material Design

My existing desktop app works well functionally, yet its look and feel clearly show its age. I want to give the entire interface a clean, up-to-date makeover inspired by Google’s Material Design guidelines while preserving almost all of the current workflows underneath... (Budget: $750 - $1500 USD, Jobs: C# Programming, C++ Programming, Figma, Graphic Design, Logo Design, Sketch, UI / User Interface, User Interface / IA, VB.NET, Website Design)