I have thought about this too, Jeff,
IF they get across Packard Gulch, and then over Gregory Stope, they have a pretty fair shot to get to the tail of the second switchback.
The only way that I can see to make it a success is to hit all of the big parking lots that have been built up there and offer a train ride from the Parking Lots to Central City.
Yes, parking is a mess, but it has been for a long time.
Actually, as a place to park the locomotive, I would opt to uncover the depot from its EPA tomb and to display Locomotive, Combine and the Leased Gondola on the town side of the Depot and use the Depot as an Museum and Town Information Center. Much of the track in the yard should still be there as the yard was not scrapped by the C&S because the City had already regraded Spring Street and it had covered the road crossing, preventing access. I have also seen some rail that tumbled down the side of the tailings pile.
Just the demented ramblings of an old timer....
Rick