I believe you'll need an Airbag, possibly a harness?, wheel, trim, and buttons. Most people sell wheel, trim and buttons without airbag. Then, most people also sell just wheel and you have to source your own airbag, trim, buttons, etc. Airbags are about $300, trim is about $80. I'm not sure if you can use your stock buttons...
I'm in the same boat as you. haha