CSX GP40-2, GP38-2, B40-8

[faraway]

.... spare coupler pockets .....
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Can you help me to find the correct parts for the knuckle and the pockets.

I find at Walthers
knuckle:
from Details West 235-196 Coupler Knuckle Brackets -- Spare pkg(2), is that the right one?
but nothing for the pockets.
What parts did you use?

ps. I am expecting Athearn RTR CSX GP40-2 in boxcar design to arrive shortly and plan to add some details.