Well isn't the return on what would have been the lump some "gains"? It is not so easy to tax defer income on an investment of $900m that I know of? What are some of the plenty of ways you are referring to?
I'm not a tax professional, but off the top of my head: 1031, harvest losses, structured sales.
Go through the numbers with a financial professional or actuary and 9/10 (I'm being generous here) will tell you that the lump sum payment should be a given for 99% of the population.