I've always wondered why there isn't a site with ring lists for pins or why it isn't added to IPDB or one of the flyer sites.  Or is there such a site around?

Seems it would be an ideal thing that people could contribute to. 

For a person with just one pin or a new to them pin it's a pain to have to order a kit and then discover what is missing.

Searching on rec.games.pinball will sometimes turn up a list of required rubber.