I am new to ergonomic and programmable keyboards, but something felt fun about making it as cheap as possible by doing 5 at once, and cheapinos at that. I spent quite a few hours on slimming down the cost and ended up spending roughly 35-40 bucks per board, switches and keycaps included. For this I have:

• Magnetic USB-C cable
• 360 rotatable RJ45 cable
• Hotswap Cheapino V2 board that hopefully works
• Spare PCB that can serve as bottom.
• Of course it has rotary encoder as well.
• ABT Green/Red Aliexpress sourced keycaps.
• Either Gateron G Pro v3.0 Silver or Tecsee Purple Panda switches (very good budget switches based on reading)

For this, how much would you realistically ask for? Either max profit or your preferred cost.