The Frisco was acquired by the Burlington Northern Railroad on November 21, 1980. Burlington's web site lists several organizations that specialize in railroad history.
A traditional diesel electric locomotive for passenger service will cost about $2M. Electrics seem to be going for more, though I don't know why. Seems to me they should be less. Transformers are cheaper than diesel engines. The Acela, JetTrain, ICE ...
Reading Railroad, Pennsylvania Railroad, B&O Railroad, Short Line