It is extremely unlikely that the Cs could pull a draft pick with Cousins' upside from the two picks they will have this summer. I'd trade those two picks and JO's expiring deal for DMC (Or Bradley and Wilcox and the two firsts, If Sacto prefers that).
It's easy to say "I don't want that kind of guy on my team" but when you have a chance to grab a big with top of league talent at his position, you have to take it, even with the big downside if Cousins can't conform to your program.
Cousins has all the ability to be a top center in this league for the next decade. True, it mike take him a decade to figure it out, a la Zach Randolph, but what better environment than this HOF laden, Doc Rivers coached team for DMC to learn and thrive?
Considering the window is closing on the Big 3, I'd send both the first round picks and one or two seconds to make this trade. The upside, a fully engaged Cousins starting alongside KG, could mean another title and a cornerstone center with as much upside as any center not named Dwight Howard.