Here are a couple of 18's and a few 21's. Last time I sent one to Europe it cost about 4-500 GBP.
Prices are in New Zealand $$$.
http://www.trademe.co.nz/Browse/SearchResults.aspx?&searchType=0001-0026-1255-&searchString=nsr&x=0&y=0&searchregion=100&type=Search&sort_order=&redirectFromAll=False
Good luck with your respective searching.....
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Stop sniffing my ring
MC28SP
KLX110 hotrod
CAG Minimoto
1997 WRX
21 Speed Bike
162 Smurfs