First, I have to LOL hardcore at your automatic door comment... only because I do EXACTLY the same thing! Oh nerdiness...
Second, I agree with the above statements, Ultra or Deep will likely be able to help you with this. However, I'll do my best to provide my two cents (especially since I'm a big fan of green sabers):
There are a couple options for greens. There's plain old green LEDs like Consular Green, or you can get a true Emerald color (a green with some blue) by using a higher bin cyan Luxeon. I'm not exactly sure about darker colors, to me it would seem like that would be a tough thing that would require a creative solution - perhaps using some kind of color discs with the Consular Green?
Anyway, hope you find out your answer, be sure to let us know when you do! We always welcome new custom colors