I wouldn't trust that site - there are a few things that are wrong:
'One Key for door and ignition' was introduced a lot earlier (my '65 had it)
'Rear view mirror no longer incorporated into sun visor mountings' - wasn't on my '65 either.
That Hazard switch in the picture looks like an accessory to me.
If I were putting one in, I'd put by the ashtray, the opposite side to the ignition switch.