[mr0077]

Run jumpers...one would go from the keyed switch IGN to one terminal of the toggle switch, and move the wire that was on the keyed switch IGN to the second toggle terminal; the other jumper would go from the keyed switch Start terminal to one terminal of the push button (I used the horn button switch like Jag E-types), and move the wire that was on the keyed switch Start terminal to the second push button terminal.
I'm assuming you're using the keyed switch for security?