...P.S. The real life scenario will be mid 7 figure money....

At this level, using a fee only by the hour financial advisor is a pretty easy decision when you look at the fees as a minuscule percentage of your portfolio. Paying one by the hour, in addition to likely costing less, will also eliminate a lot of conflicts of interests with the way thet other advisors are paid. Just be clear that you are looking for strategy and advice, not trying to find someone who is an expert stock picker. Interview several of them before you select one.

One strategy to look into is to invest the majority of the money all at once, but to use a small portion of the money to buy options that will soar in value if the market crashes to essentially insure yourself against a sudden market drop.

The question of lump sum investing vs DCA does not have to be a yes/no answer. You could invest half of it now, and DCA the rest over the next few years.

I would be cautious about keeping all the money in things like CD's or short-term government bonds for safety. The problem is that the dollar has already dropped a lot against other currencies. Keeping lots of money in dollar based investments is really making a big bet on the near term future of the dollar which has it's own risks.

Greg