I removed the airbag, and replaced the steering wheel.
You can get some fancy diode (or resister or something like that) that you can plug into the wiring to make the sensor think the bag is still there.
I just removed the airbag sensor too and so no lights and no problems at MOT
Some bits here :
http://www.madabout-kitcars.com/foru...ead.php?t=4917