4.8is Coilover Suspension Conversion - How to remove warning/error lights?

[2004X5 4.8is]

Good day - I have finally given up on repairing the adaptive suspension on my 2004 4.8is E53. Nearly all components have been replaced, all connections checked, and $4,100 has been consumed, yet the indy shop (including visits to the BMW dealership for code reads, advice) cannot seem get it sorted out.

I would like to install BC Racing coilovers on all 4 corners. This is not ideal, but I think the price ($1000) and permanent fix on a 150k mile car are my next best solution.

MY QUESTION: Does anyone know - definitively - what is required to remove and/or prevent any error codes and dash warnings once the airbag suspension is replaced by coilovers on the 4.8is? I have heard it is simply "coded out" at the dealership but I can't seem to find any read information on that.

IF dealership coding is NOT the answer, Suncore Industries makes a coil spring kit (not coil overs) that includes a "warning light remover" as a $200 adder to the kit - it loks like a module that wires in somewhere. Does anyone know if this part can be purchased elsewhere or separately? Any other sage words of wisdom here?

Thank you VERY MUCH!!