Long story short I've had an ignition failure and the key starting coil is toast and putting a new one is is'nt the best choice.
I am adding a toggle on switch, then a momentary push to start button.

I've unplugged the plug that goes from the wiring of the car into the ignition switch in the key coil. No problem,
I've identified the markings to indicate what each (important) wire does, ACC, IG, ST, and them AM,
According to the Toyota manual the AM is the power supply, and the turning key simple allows power to flow to the ACC or IG or ST,
ACC I can only assume is accesory, IG must mean ignition, and ST is the starter.
I took apart the ignition switch but have had a difficult time figuring it out.
I really think it is as simple as putting the toggle switch in line with AM to IG for the "iginition on" switch,
Again the momentary "push to start" switch would be a button from AM to ST,
What I'm looking for is to get some feedback just to make sure I fully understand the wireing job I need to do.
If the AM is connected to the IG to "enable" the ignition IS it okay that that AM will also connect the "ST" to start the car at the same time?
I'm pretty sure that is how the switch works. But I don't want there to be power flowing into things that it was'nt ment to be.
But looking in the internals of the switch it looks like the switch sends power to all the places at the same time.
Also, I could not tell from the wireing diagram if this process simply supplys power to a relay or is the actual power that "starts" the car.
If there is no relay I better use heavy wires.
I'd love to hear from someone who has done this already.
