I gotta quit answering my own posts. After doing some more research and internet crawling, I have found that a standard model A closed car hinge pin is 0.233 to 0.236" diameter. The nice stainless steel ones which I have (they came in a bag with the project) are 0.244" diameter. Snyders Antique Auto Parts www.snydersantiqueautoparts.com sell oversize pins which are 0.247" to 0.250" diameter. They also sell a nifty looking tool to assist with removing or replacing hinge pins. I still haven't found information on the reamer, but I know more now than I did 3 hours ago.