Hello,
My name is Noah Lencioni. I am a long Unity Developer. I understand that you need your game converted from Unity 4 to 5. What I will do for you is restart the project. I know this might seem scary, but I will reuse everything used in your game. The only reason I am restarting it is because when you convert it, the graphics will look no different. I will make a new project to make the game look better, I will update the code for in Unity 5, there are some things that will need to be changed, and I will make any other changes or tweaks you want me to make for the game. I hope you will consider me for this project and I hope you have a wonderful day!
- Noah Lencioni