Bad idea to post your email address to a public forum, unless you want some spam crawler robot to pick it up and add it to a spam list. If someone here knows the answer to your question, the answer will be posted to this forum -- not emailed to you. If you wish to receive help here, all conversations and troubleshooting will take place on this forum, in this thread -- not by email.
When you say you are in search of the ADC connector, what, exactly, are you looking for? The Quicksilver computers came with graphics cards that had ADC connectors for connecting Apple-branded ADC monitors. Those monitors' cables had ADC connections on them.
You can also purchase ADC-to-DVI converters, so that you can use the ADC connections on that computer with monitors that only support DVI.