I recently got a Dept. 56 City Trolley, it currently runs by bumping back and forth.  However I would like it to run in a large oval around my christmas village, to do that I am needing to purchase track & I'm wanting to make sure I buy the correct one.  My tracks are silver on a brown pebble-like base & measure 1.125" between the tracks, what would be my correct one?  Also, my oval would be about 14' long on both the front & back straightaways and how ever large the corners need to be to make that happen, is one power source enough? I will probably run 2 trolleys on it.