Fred Frailey, noted TRAINS magazine consultant claimed about a year ago that the reroute would not be "free" and that it could require as much if not more than the preservation. While some might scoff at this
I do scoff at this. It's absurd.
consider the rearrangement of tracks on the mainline to access depot locations, depot renovations (or even new structures),
There are likely to be only two new stations: Wichita and Amarillo. Expect NO other stations between ABQ and Newton. Wichita is pretty much ready as far as track connections and the city is willing to pay for station renovations. Amarillo -- well, maybe there won't be a station in Amarillo either!
Look at the station spacing on some of the other trains. Amtrak is happy to increase station spacing.
Not needed.
No stations, no issue.
relocation of servicing facilities...
There aren't any servicing facilities to relocate as far as I can tell. ABQ will remain; there's nothing between there and Newton.
Oklahoma and Texas will be no more willing to pay for a Southwest Chief reroute than Kansas, Colorado, and New Mexico were for preservation.