Moonska take a look at this site,
http://members.rennlist.com/911pcars/WheelWts.html
Thier is a lot of great info on this site with some links at the bottem that might help you figure out whether or not the wheels will fit with a 2" cut at the tube. You can get the wheel measurements off the website then go measure it on your car to see if it will fit. Hope this helps.