How to replace the steering wheel?

Well I finally got my alcantara steering wheel done in an acceptable fashion and I would like to install it on the car to see how it works out. Thus my question here. I am mostly concerned about the airbag and the slip ring (I do not want to damage it). So what would be the procedure to install a new steering wheel on our cars reusing the existing slip ring? Is this something I should try myself or pay 1 hour of labor to the dealer to do it?

I would appreciate any suggestions.

Thanks,
Florian