Wow, this thread is hard to follow - two conversations going on at once.
Anyway, Adam, the Brewery Plastics pins are three-part but are very solid, and I'm guessing at home you won't be dropping them down a cellar, so I wouldn't have any concern with that.
Barley Bottom (<!-- w --><a class="postlink" href="
www.barleybottom.com">
www.barleybottom.com) used to supply these, but I don't see it listed on their website, so they might be worth a call. If so, he'll be able to sort you out wth shives, keystones, spiles etc.