What compression are you looking for? If you want stock compression, you'll have to wait a while for some to pop up, or get them custom made. If you have a browse in the for sale section, you'll find some 18RG (9.7:1) OEM items. If this is what you want, act quick, 'cos they're rare. The 18RC and 22RE options are not good.
Alternatively, if you are building a NA beast, toysport in the US sells hi-comp pistons (custom made by Venolia pistons).