I doubt it is over your head. 
KBI can be accessed with a serial tool(UART). KBI can also be accessed in Krescue, but it has limited functions and does not yet offer LED control.
These skills will serve you in your SBC journey, it is not difficult. We can help.
Khadas SBCs are extremely resistant to people like me. 
I think risk is low with KBI, as long as the user changes only the settings related to LED.