SBC Interfacing Board Design & Development

We have once SBC attached in link below https://docs.radxa.com/en/cubie/a7s We are looking for an interfacing board for above SBC with hardware schematic design as well as PCB layout development with your service... (Budget: ₹12500 - ₹37500 INR, Jobs: Audio Processing, Electronics, Embedded Systems, PCB Design and Layout, PCB Layout, Prototyping, Schematics)