You could trace a line and then export the line coordinates to a mif/mid text file using this tool --
http://www.mp2kmag.com/importersub01.asp
Short of that, you could put in Pushpins as you are saying and then use the Pushpin Tool to export the coordinates of the pushpins to Excel. Gilles Kohl also has a free unsupported tool on his web site that can accomplish the same writing to a text file.. see this newsletter --
http://www.mp2kmag.com/update/?id=5
Eric