Choose two.

...because the sex will likely come if I have those two anyway.

A mind is a terrible thing to waste. Time is also a terrible thing to waste because time is money.

I already have all the money I really need.

So I choose all three. :p

for instance, if I know I'm dying in 30 minutes I don't particularly care about the state of my mind or bank account. Assuming the state of my mind was sufficient, sex would stand well above the other two.

So sex is a given. As Donnie Darko would say what is the point of life if you don't have a dick?  

It's a side effect of aging, and my educational background.  (philosophy  major)

It is no measure of health to be well-adjusted to a profoundly sick society. - Krishnamurti
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Looks like I’m already insane, so I might as well take all the money and sex. I can handle.  
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Besides, with enough money, I can buy enough power to fix all the things that make us insane. So truly, for y’all‘s own benefit, start handing the all that money and sex over and just let me do my crazy thang thang.🤪

For example, if you want something, you can get it "Fast, Good, or Cheap" - pick two.

Okay, perhaps its the state of my sanity but I always hate, and generally rebel against, such constraints. But it's your game so I should not be too impolite about it.  

I’m slightly insane because I spend way too much money having way too much sex! Does that qualify?!

...is one of my favorite viral tweets from the glory days of Twitter. Sanity be damned! As someone who's always owned my crazy, I'd definitely choose money and sex.