I know I would be in for the black version to use behind the AFT scheme when it was repainted after the BNSF employee specials. I would also be game for a Daylight light version.
I had thought about contacting Intermountain to see if they would sell tenders separately, but I have enough projects that I need to finish before starting something else.
You could even use it for other steamers and just not 4449. ATSF 3751 used it.
Chris