Hello,
Just to make sure I understand your project correctly. You're looking to have a populated PCB made based on the schematic diagram you attached.
The firmware, model boat, motors, and anything else needed to make this work will be your responsibility, correct?
So, assuming this is case, my current bid is for the design of the PCB (I will need max X, Y dimensions), and the production of a single assembled PCB.
My testing is limited to electrical testing of the board. Otherwise, I will need you to provide the model boat, and the firmware.
If firmware is also needed, I will have to update my bid. However, in that case I will use my own choice controller.
If interested please contact me. Thank you.