Hi, Below are my project plan.
To make things easier, the project will be separated into two milestones:
Milestone 1: Schematics(symbol and wiring), review, If you approve it, release Euro 650
Milestone 2: PCB footprint/Placement/Routing done and checking OK, release Euro 600
I will support your board fabrication and assembly.
If you want the me to prototype it, it should be another topic.
Thank you!