Originally Posted by
nfmisso
headsets are not expensive - get the whole thing, as some of the parts you still have may have been damaged. Even a little bit of non-visible damage will adversely affect the feel of your bike. This is not the place too save a few cents.
+1 Amazon sells complete Cane Creek 10-series headsets for $31 and the better quality 40-series for $41. Sourcing the individual missing parts will probably cost at least that much and, as noted, the old ones may be damaged.