I have an exciting robotics engineering project that I need help with. I am looking for an experienced professional with knowledge in engineering to help me create a robot arm that does massaging.

I don't as much to you do the 3D Modeling, I want help in1:
1. figuring out what motor and controller to use
2. Electrical Diagram
3. making a controller with buttons, could be using an existing platform: Arduino / rasberry pie ettc
4. code needed to control it

Product desciption: Do you wish you had chills while trying to fall asleep? Being touched while sleeping is a natural sleep aid, with the device helps fall asleep every night with touch! This portable sleep device gives sensations of a touch of a person's fingertips, fingernails running up/down your back and a feather being rubbed on you while you rest. It is shaped like a hand and blows air from the fingers providing full-body chills and a touch feeling with a timer function. Mount to your bed or nightstand and set the device to one of the
multiple modes for various sensations

My current project involves designing and building a robotic arm. This will require knowledge and expertise in motion control using motors, technologies. The aim of this project is to create a robotic arm that can slightly touch a person. The successful candidate must possess a deep understanding of robotic engineering and a practical knowledge of programming and development.
more details would be provided to selected engineers