Securing ignition switch left of steering wheel

[Legendary]

I am think about moving my ignition switch from the center of the dash to the left side of the steering wheel. I have the padded dash with the cutouts. I am trying to figure out the best place to put the switch. The dash seems kind of flimsy at the part where it starts to curve. Are people putting some sort of backing plate to make it more sturdy. Any pics or dimensions of how far to put the switch from the speedo/tach ? Thanks