Gent and Ladies,
In addition to the P-A clock vanity on eBay, there are sellers offering a few interesting Pierce-Arrow parts, including a carburetor, two sets of taillights and Durham body plates.
The carburetor is the most reasonably priced piece.
Below, I attach one of the links.
Peter
http://www.ebay.com/itm/291919640102?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT