Hi. My name is Federico, I'm a software engineer and a developer at Mimic, an indie game studio from Mendoza, Argentina.
You can see some of our previous works in our portfolio here. We have been working on Unity for more than 5 years.
For your task I'd need to know if you have the unity project, then what you ask may be done. However, I'd need to know more about your needs to make a proper budget.
Please feel free to contact me should you have any further questions.