I have a Lionel 6-12062 Fastrack Gated Crossing with Flashers with one failed red bulb. Actually it is an LED that tests bad with my meter. Lionel lists the part separately as 6104098300 Lamp/14V 50 mA / Red / Grain of Wheat but they are unavailable. In fact the larger complete flasher assembly is also unavailable. Looking for any helpful suggestions on where to find a matching red bulb/led.