I changed the steering wheel on my last car ( still kept air bag) & it was easy. I just found the fuse for the srs system & removed it (no fuse,no chance of any air bag going off).
Found the two screws round the back of the steering wheel which holds air bag onto the wheel & removed these. Remove air bag from wheel & disconect electrical cable. Remove the nut holding steering wheel & get a good grip on wheel spokes & it should come off.
I think you will be stuck with the air bag warning light on tho ?.