2007 Ford Shelby GT spare tire

[davecadimyers]

Hi: I Just bought a 2007 Ford Mustang Shelby GT with 12,000 miles and just joined SAAC. My question is why some have a temporary spare tire, and some have the sealant inflator kit? I would like to remove the inflator kit and put a real spare tire in its place. Could I just buy a stock 17" spare tire kit from someone on eBay and solve the problem?
Thanks! Dave.