Good Morning John,
I too am a fan of the early 150 series of electric locomotives so over the years I have bought cars at various times and now have 2 that I don't really need. I have the green 802 Union Stock Lines cattle car that is on your list in, in what I think, very good original condition for it age that I will sell to you for $30.00. Also, though not on your list, I have a 630 observation car you might someday want to go with a 152 loco/ passenger consist. It is dark green and in good to very good original condition for its age. I will sell it for $14.00 or you can have both for $40,00. Shipping would be actual from my zip, 03086, to your zip, 17565, $7.90.
Pictures attached, let me know.
Have a great week, Jim Lawson