To ship the lot? These are 4.0kg per wheel. Superlites are something like 5.56kg each (13 x 6).
At the moment it's overweight for the 20kg limit, so it'd be two parcels. 17kg parcel: Air mail $276.10 Sea Mail: $162.10 (approximate prices).So add those with the freight quote I gave you before for the diff centre and that is about what it comes to I guess.