Auction sites are the last place you want to be for helmets, unless you really know your stuff. I check auction sites frequently because, like ebay, gems do show up from time to time, but for the most part it's nothing but total junk. I can show you at least a dozen junk helmets on auctionzip right now.
ive been looking latey at auction sites just for a stock standerd m42 helmet. but just seem to come across helmet like the one posted here. over the top freaky fake helmets.