I was wondering if anyone knows of any availability of these plugs, (in a set of 6), either used or nos. It seems that at least on Ebay they are hit and miss, usually they are not matching styles, and I'm thinking it would take forever gathering up six, one at a time. I'm trying to restore my engine to oem specs. Also in the event of these plugs being to hard to get hold of, is there an accepted vintage brand that might be easier to find? Any help whatsoever would be greatly appreciated. Thanks, Bud