You bought those ones that were on eBay w/o levers?
Shims as nebmot said are a non-issue. Byproduct of the old school Zipp, thinking that smaller is more aero, even though nearly every stem in the world now is 31.8. I used the shims for years & never had an issue. Carbon paste & torque wrench = your friends.
As for levers, nope. They show up on eBay every now & then, or see what the Zipp guys can dig up. Worst case, find a friend who has the bars, take his levers off to make a copy, and mold your own.