I don't think any ping lists are worth it if all you get is excerpts. Can you split the list between articles and excerpts?
The rest of the article is in post #5. Sorry, but I think your complaint is with the increasing number of Freepers too lazy to post entire articles, not with me. Besides, usually in such cases someone else comes along, complains, and posts the article.
It's time for us to start naming and shaming those that refuse to post full articles, IMHO, not work around their sloth.
(Also, nobody else has asked for such a thing. I'd have one ping list with only you on it, and another with everyone else.)