need suggestions for engine/tender wire plug replacement, t-1 6-18006

So I am trying to get some run time in on my conventional engines and went to run my prized Reading T-1, 6-18006.  As I went to put it on the tracks, all the leads on the female plug from the tender broke,  ( part number 610-800-131), leaving me with a loose plug in my hand. The engine still runs as the reverse unit is in the loco, but no whistle or bell.  I really like the whistle on this machine and want to get this fixed.

I know the plug number because Lionel has the service document online, so I could maybe get another plug.  What I don't know is where the various wires go on the plug. Can anyone help with that?  Also, this plug arrangement isn't that great to start with or it wouldn't have broken.  Does anyone have a suggestion for a replacement plug style that I could use.  (Please remember on this lionel t1 the plug doesn't come out the center line of the engine, so it can't be really wide or it won't fit. ) I have some other conventional equipment I would like to replace the engine to tender tethers on as well, so I am open to suggestions.

All help appreciated,

JHZ563