We had/have? a member who invented a device to be wired in that would render the SAI virtually invisible... bypassing everything... and passing smog. I had read enough about the SAI when I purchased my car in '17... that I bought one. It remains stored away until necessity calls. In the event of my death, and before install, I "sharpied" on the box in which it's stored what is in the box... and a price suggestion so that my wife can profit.
OP... what is the asking price for the car... and just use numbers.