I would imagine the launcher car is totally scrap able after use ... after all, it's launching would trigger global WW
The cars were theoretically designed to be able to move again after a launch. I doubt that would be practical considering the force of ejecting the missile from the car, but who knows. They used the same launch tubes as other methods of launching so theoretically the cars would be reusable. I can go into further detail if need be.
I doubt very much that they would have roamed a quarter mile from the camouflaged hidden base bunkers
It is unknown just how many were manufactured, but I would guess it was One experimental prototype
Here's the list I've compiled of the locomotives and cars that I have proof of construction for:
EM - Engineering model, i.e. a functional version of the car with all features working but not necessarily indicative of a finished car in weight or center of gravity.
EMS - Engineering Mass Simulator, aka a car with a huge weight in it simulating a missile or other load. Indicative of a finished car in train handling but not functionality.
TRAIN 1
Locomotives:
Off base: TBCX 4900, TBCX 4901 - to Ft. Eustis, then MOT Sunnypoint
On base: VMV 6692, 6713 - 6713 to Sunnypoint, 6692 to Fort Worth & Western
Control car: DAFX 0001 -- EMS-2
Control car: DAFX 0002 (HTCX 402) - to Elmendorf AFB
Security car: DAFX 0003 - to Elmendorf AFB -- EMS-2
Security car: DAFX 0004 - to Elmendorf AFB -- EMS-1
Control car: DAFX 0006 - to Elmendorf AFB
Parts car: TBCX 90050 - to Elmendorf AFB -- EM-1
Tank car: TBCX 90001 - to Elmendorf AFB
Launch car: WECX 1001, 1002 (possibly 1002R) -- 1002R to USAF Museum -- EM-1
TRAIN 2
Locomotives: TBCX 4902, 4903 - to Eielson AFB
Control car: DAFX 0007 (HTCX 407)
Security car: DAFX 0008 & 0009
Parts car: TBCX 90051 - to Fort Eustis
Tank car: TBCX 90002 - to Fort Eustis
Launch car: WECX 1003 -- EMS-1