The nib was the most important bit. It had to be a 9314-M. After trying one I really liked it, although a 9312 italic would be more than acceptable. Beyond that, colours Blue, Red, Copper, Grey, models J, transitional or Dollar. As you can see, other than the nib, my choices are fairly broad, but it had to be a good example, not just any old beater. So if it was a red J it would need to be a deep lustrous red for example.
I am sure in the US you have an easy time of finding Esties to satisfy your needs. Being overseas means I have no real resources.
Portland, eh? I have a cousin who lives there, and a simply amazing American woman who I worked with here (NZ) for a couple for years, and who taught me much about life, also resides there. Small world!