I'm not going to pick anything apart, but I'll say one thing; I'm always skeptical when someone says something is going to happen on a specific date.
For this example, we're looking at almost a decade of bull market, I think there needs to be a Black Swan event to really make it rollover hard - so the odds of someone picking a date and saying it happens here, my feelings are that it is nearly impossible.
For our last crash, the wheels really started turning the day Lehman went under... Unless you were a C level executive there, nobody had any way of knowing that was about to happen.
Regardless, I wish you luck on this - personally, I'd think you want to work your way into this position over the course of a few transactions and leave yourself the ability to dollar cost average as opposed to going 100% on a specific date.