Not sure where to ask this...Steering wheel question

[absoluturq]

Im a little confused and want to clear things up before i start ordering things..
I recently bought a nardi steering wheel online and i thought it was the same hub with momo but after some research i realized it wasnt...

So what i need to buy is a momo/sparco hub and one of these on top?

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=140415151828&crlp=1_263602_263622&ff4=263602_263622&viewitem=&guid=f29b34601250a02652b6ca56fd7dcc18&rvr_id=&ua=M*S%3F&itemid=140415151828#ht_5038wt_1167

Thanks for any help...and heres a pic of my car for shts and ggles