Hello,
I am Anthony from Sri lanka. I am working as a full time freelancer on mostly embedded systems and product development fields.
I have worked with many motor controllers and also I have designed custom motor controllers also (Brush,brushless,stepper). According to given specification this can be done quickly. I guess you are expecting the schemetic design, PCB design , gerber files and also firmware for control. I can provide them all.
Since I am a full time freelancer I have my own electronic lab,PCB printing,3D printing(FDM/DLP) facilities. Simply I can deliver you a working prototype.
Thank you for taking time to go through my proposal. Hope to hear from you.
Best Regards,
Anthony