Old GE or similar Electric Range (Richmond near I-80 and McBryde)

If someone is getting rid of an old electric range, I am looking for the 3 or 4 position switch to control the oven. I would prefer not to trash our old electric range since it fits the kitchen (40 inches wide) and worked well until this switch stopped working properly. GE stopped manufacturing or carrying switch or even any information about it. The original switch was Off, Bake, Time Bake, Broiler, but all I need is Off, Bake, Broiler since timer has not worked for decades. Parts houses have thus far been useless. The old time knowledge of what things do has been replaced with "we don't carry that any more", so no one has suggested that something else might work. All it needs to do is fit in our range and control 220V high amperage power and be three position switch. I might even be able to repair existing switch if anyone knows how to reassemble a switch of this type. Any suggestion would be appreciated.