I just noticed now that you are not in States; don't know much about auctions in Europe other than the giant ones I receive catalogs about.
But here in the states, besides the online auctions, virtually each major city has a local IBM or SAM club that holds auctions, hence we are awash in used silks.
Harold Rice's daughter (www.silkkingmagic.com
)still sells original RICE silks. Although pricey, they are the best. Not necessary understand; just the finest.