George...enclosed is a picture of my "Neptune" , like yours good working condition and no rust but it also is missing a few parts. I have the front bumper but am missing that round tire bumper and one towing bollard in the stern. I got mine quite some time ago when we lived in Pennsylvania and it seemed that both train and toy shows were common ( '87-'94) so I have no idea what I paid for it, but I don't remember it as being that expensive. I agree, in mint condition it would be much more pricey. I really like that you integrated it with the Std Gauge portion of your layout. Since I run O'gauge except around the tree I never really considered it as part of a lay out...but Christmas is only 11 months away!!
Regards Don