Well, I was the guy along with Rob Mangels and Mike Koehler who went to Morris Park to look over the cars. It was cold, rainy and chilly, but I can't right off find the date of the trip. However, pulling out my notes I see that I wrote the quote for the 530 (ex-2862) on May 14, 1991 and quoted the 531 (ex- 2868 on May 30, 1991.
Notes state that they both departed Rome Locomotive Worls at 4pm on Oct 3, 1991. There were several work orders and without alot of further digging cannot answer for the rest of them. I suspect it may have been late Fall 1990 when we went to Long Island to chose cars and NYSW made the purchase sometime later. I recall the cars were all at Rome when I did the final quotes
Doug Ellison
former Rome Locomotive Works