What do you mean "nobody would post them"? Did you mean, nobody would sell it or ship it to you? I have one at home, somewhere, but it's not for sale. I know of some people that they use the spark plug filler gauge, BUT, here is the BUT, they use the correct size or very, very close to the correct size.
Have you tried emailing Dan Wesson and see if they have it and mail it to you?