This caboose, SP - 1546, is located in Port Lavaca, which is on the Gulf coast between Houston and Corpus Christi, Texas.  Note the apparatus on the top; it may be a microwave antenna.  This might be a good candidate for a scratch build.  

 

sp-1546_1.jpg (149465 bytes)  sp-1546_2.jpg (86555 bytes)  sp-1546_3.jpg (162733 bytes)

Visit the Southern Pacific website for more information...http://www.sphts.org