Without completely rifling through the book....
Most of the CB&Q portion of the pool went to Amtrak. Atlas has made every car they've tooled so far in Amtrak colors and they're correct.
The Domes, obs and 1st run 10-6 sleepers were by and large not converted to HEP. Baggage cars were converted.The 16 section cars had been converted to coaches before the end of the CZ and were converted to HEP, as was the Q's second order of 10-6 (Silver Crag and Chasm). The 6-5s were HEP converted and eventually wound up in the auto train (As 11 dbl BR), diners were converted as well. 2 of the diners (S. Restaurant, currently 8504 and S. Diner, currently griddle diner 8551) are still in service.