Unity 2D Action Combat System

I'm looking for a Unity developer to design a fluid and engaging real-time combat system for a 2D action game. The focus is on smooth mechanics, responsive controls, and rewarding player feedback.

The combat system should include:

- Melee Combat: Base light attack, base heavy attack, and two combo attacks (A and B) as the following:
Base attack followed by-> AAA
Base attack followed by-> AAB
Base attack followed by-> ABA
Base attack followed by-> ABB
Base attack followed by-> BAA
Base attack followed by-> BAB
Base attack followed by-> BBA
Base attack followed by-> BBB
&
- Evasion Mechanics: Dodge, and reactive defense (1 counter attack hit/move)
&
- Skill Progression: A balanced system that rewards mastery and strategy


Please provide:
- Estimated timeline and cost for development
- Examples of previous work in similar projects or a demo in case you were new and confident in you work

Thank you.