Brien,
I found your earlier post and am sending this reply...just in case you did not find everything you were looking for.
[1] I have a #6456 Lehigh Valley maroon hopper in C-8 condition, complete with the original box (most likely at least P-6).
[2] I also have three (3) #3469 operating ore/coal dump cars, black- -two in C-8 condition, one a C-7- -all in their OB (P-6, I think) and the bins. I realize you indicated a #3459 car, but thought you may want to consider getting one or more of the later version car(s) too.
I don't have photos of these four cars, but will snap some representative pix if you're interested in any of them.
Bob G