in the PO-A series the following from your list of wants:
WHITE: C, G J R & T
RED: F (C, obv) I L S T Y Z
BLUE: I & Z

Trav also has some of the PO-D & other series.

What you must do is come to our big trader meet at Saratoga in Augus--Sat., Aug. 3, I think, but Sanders is setting it up. If you come, I'll bring my book of Monos.