Allied Electronics (alliedelec.com) 683-0128 is pretty close for the Model T. It's all plastic, has a bigger pilot light and a curved rocker. Rated at 15amps/125V so it should last a long time. It fits perfectly in the hole. I don't have a coliseum open right now but it looks like it might be the same as the old 100s/200s type riveted in with ears. I found several similar switches at a surplus store without the pilot light.
I think Carling still makes the switches that Sunn used but their part numbering scheme is so complicated you would need to send them an old switch for an exact match and the buy 1000 of them.
