I assume UP deeply regretted putting 4023 (the only survivor of the 1944 order) up the hill in Omaha once they decided they might want one running again.
I have Ron Ziel's "Twilight of Steam Locomotives" book where it shows her sitting next to 3985 inside a roundhouse and noting both had recently been shopped before putting them both inside. Then again, they'd have had to take any BB apart for the rebuild, no matter which one. But UP still owned it in recent years as I understand and when it was down at the shops, it would have been such an easier move to get her to Cheyenne...
