audio engineer -- 2

I’m doing a University assignment in which I need to plan and organise an exhibition. I’m planning to hire an audio engineer to set up an interactive musical exhibit. Costs must be factored into the assignment. I need an engineer to set up an environment where the public can come and create their own music tracks and loops in a physical surrounding. In the same vane as the piano mats that you walk on to play. Any help and advice you have to offer is greatly appreciated.